acnagle/gsm8k-filtered huggingface dataset:
Jeff plays tennis for 2 hours. He scores a point every 5 minutes. He wins a match when he scores 8 points.

Question: How many games did he win?
Answer: He played for 2*60=<<2*60=120>>120 minutes
So he scores 120/5=<<120/5=24>>24 points
That means he won 24/8=<<24/8=3>>3 games
#### 3
Shyne can grow 14 eggplants in every seed packet and 10 sunflowers in every seed packet.

Question: She bought 4 seed packets of eggplants and 6 seed packets of sunflower, how many plants can Shyne grow in her backyard?
Answer: Shyne can grow 14 x 4 = <<14*4=56>>56 eggplants.
She can grow 10 x 6 = <<10*6=60>>60 sunflowers.
So, she can grow a total of 56 + 60 = <<56+60=116>>116 plants in her backyard.
#### 116
Justin is 26 years old. When he was born his elder sister Jessica was 6 years old. James is their elder brother and is 7 years older than Jessica.

Question: How old will James be after 5 years?
Answer: Jessica is 26 + 6 = <<26+6=32>>32 years old.
James is 32 + 7 = <<32+7=39>>39 years old.
After 5 years, James will become 39 + 5 = <<39+5=44>>44 years old.
#### 44
Officer Hopps has to give out 200 tickets in May. The first 15 days he averages 8 tickets a day.

Question: How many does he have to average each day for the rest of the month to reach his required goal?
Answer: He has given out 120 tickets because 15 x 8 = <<15*8=120>>120
He has 16 days left to had out tickets because 31 - 15 = <<31-15=16>>16
He has to give out 80 more because 200 - 120 = <<200-120=80>>80
He has to give out 5 a day because 80 / 16 = <<80/16=5>>5
#### 5
Jack is ordering custom baseball caps for him and his two best friends. Jack's head is 12 inches in circumference. Charlie's head is 9 inches more than half the circumference of Jack's head. Bill's head is 2/3 the circumference of Charlie's head.

Question: How many inches in circumference is Bill's head?
Answer: First find half the circumference of Jack's head: 12 inches / 2 = <<12/2=6>>6 inches
Then find how big Charlie's head is: 6 inches + 9 inches = <<6+9=15>>15 inches
Then find how big Bill's head is: 15 inches * 2/3 = <<15*2/3=10>>10 inches
#### 10
Last night, Jim bought a $7 lamp and a bulb which cost $4 less.

Question: If he bought 2 lamps and 6 bulbs, how much did Jim pay in all?
Answer: The cost of the bulb is $7 - $4 = $<<7-4=3>>3.
The cost of 2 lamps is $7 x 2 = $<<7*2=14>>14.
The cost of 6 bulbs is $3 x 6 = $<<3*6=18>>18.
Jim paid a total of $14 + $18 = $<<14+18=32>>32.
#### 32
Lexi wants to run a total of three and one-fourth miles. One lap on a particular outdoor track measures a quarter of a mile around.

Question: How many complete laps must she run?
Answer: There are 3/ 1/4 = 12 one-fourth miles in 3 miles.
So, Lexi will have to run 12 (from 3 miles) + 1 (from 1/4 mile) = <<12+1=13>>13 complete laps.
#### 13
Olaf is playing a game with his dad. He scored three times more points than his dad, who scored 7 points.

Question: How many points did they score in total?
Answer: Olaf scored three times more points than his dad, which means he scored 7 * 3 = <<3*7=21>>21 points.
So in total, Olaf and his dad scored 21 + 7 = <<21+7=28>>28 points.
#### 28
Crystal wanted to sell everything left in her pastry class before closing for the night. She reduced her $3.00 cupcakes and her $2.00 cookies by half.

Question: How much money did she make if she sold the last 16 cupcakes and 8 cookies?
Answer: She reduced the price of the $3.00 cupcakes by half so they are now 3/2 = $<<3/2=1.50>>1.50
She reduced the price of the $2.00 cookies by half so they are now 2/2= $<<2/2=1.00>>1.00
She sold 16 cupcakes at $1.50 each so she made = 16*1.50 = $<<16*1.50=24.00>>24.00
She sold 8 cookies at $1.00 each so she made 8*1 = $<<8*1=8.00>>8.00
She made $24.00 from the cupcakes and $8.00 from the cookies for a total of 24+8 = $<<24+8=32.00>>32.00
#### 32
When Patrick, Manu, and Amy participate in a race they realize that Patrick finishes the race in 60 seconds. Manu took 12 more seconds to finish the race.

Question: If Amy is twice as fast as Manu, how long did it take her to finish the race?
Answer: The time it took Manu to complete the race is 60 + 12 = <<60+12=72>>72 seconds
If Amy is twice as fast as Manu, then she takes half the time Manu did to finish the race, so Amy took 1/2 * 72 = 36 seconds.
#### 36
Susie's pet lizard Moe takes 10 seconds to eat 40 pieces of cuttlebone each day.

Question: How long would it take Moe to eat 800 pieces?
Answer: If it takes Moe 10 seconds to eat 40 cuttlebones, then in one second she eats 40 cuttlebones / 10 seconds = <<40/10=4>>4 cuttlebones/second
Since the cat eats 4 pieces of cuttlebone in 1 second, 800 pieces will be 800 cuttlebones / 4 cuttlebones/second = <<800/4=200>>200 seconds.
#### 200
Jude bought three chairs for his house, all at the same price. He also bought a table that costs $50 and two sets of plates at $20 for each set. After giving the cashier $130, Jude got a $4 change.

Question: How much did each of the chairs cost?
Answer: The two sets of plates amount to $20 x 2 = $<<20*2=40>>40.
So the table and the two sets of plates amount to $50 + $40 = $<<50+40=90>>90 in all.
Since Jude received a $4 change, then he paid a total of $130 - $4 = $<<130-4=126>>126 for the chairs, tables, and plates.
Thus, the three chairs cost $126 - $90 = $<<126-90=36>>36.
Therefore, each chair cost $36/3 = $<<36/3=12>>12.
#### 12
Rubble has $15 in his pocket and he needs to buy 2 notebooks and 2 pens. Each notebook cost $4.00 meanwhile each pen cost $1.50.

Question: How much money will be left from Rubble after the purchase?
Answer: The total cost of two notebooks is $4.00 x 2 = $<<4*2=8.00>>8.00.
The total cost of two pen $1.50 x 2 = $<<1.5*2=3.00>>3.00.
So, the total amount Rubble spent for all the stuff was $8.00 + $3.00 = $<<8+3=11.00>>11.00.
Therefore, Rubble was left off with $15.00 - $11.00 = $<<15-11=4.00>>4.00.
#### 4
John is budgeting for his marriage. The venue cost $10,000. It cost $500 for each guest, and John wants 50 guests while his wife wants 60% more than that.

Question: How much would the wedding cost if John's wife gets her way?
Answer: The bride wanted 50*.6=<<50*.6=30>>30 more guests than the husband
So the bride wanted 50+30=<<50+30=80>>80 guests
So the guests cost 80*$500=$<<80*500=40000>>40000
So the total cost was $40000+$10,000=$<<40000+10000=50000>>50000
#### 50000
Tom decided to go on a trip. During this trip, he needs to cross a lake, which in one direction takes 4 hours. During this time, Tom needs an assistant to help him with the crossing. Hiring an assistant costs $10 per hour.

Question: How much would Tom have to pay for help with crossing the lake back and forth?
Answer: Crossing the lake two times (back and forth) would take 4 * 2 = <<4*2=8>>8 hours.
So Tom would need to pay an assistant 8 * 10 = $<<8*10=80>>80.
#### 80
Remi wants to drink more water. He has a refillable water bottle that holds 20 ounces of water. That week Remi refills the bottle 3 times a day and drinks the whole bottle each time except for twice when he accidentally spills 5 ounces the first time and 8 ounces the second time.

Question: In 7 days how many ounces of water does Remi drink?
Answer: Remi drinks the same amount of water every day for a week except for when he spills some of it. His water bottle holds 20 ounces which he drinks 3 times a day, 20 x 3 = <<60=60>>60 ounces a typical day.
Over 7 days, without spilling anything, Remi drinks 60 ounces x 7 days = <<60*7=420>>420 ounces.
Except Remi spills 8 + 5 ounces of water during the week = <<8+5=13>>13 ounces of water Remi spills.
Total, Remi drinks 420 ounces - 13 ounces of spilled water = <<420-13=407>>407 ounces Remi drank during the week.
#### 407
Dr. Jones earns $6,000 a month. His house rental is $640 each month; his monthly food expense is $380; his electric and water bill costs 1/4 of what he makes, and his insurances cost 1/5 of what he makes.

Question: How much money does he have left after paying those four bills?
Answer: Dr. Jones pays $6000 / 4 =$ <<6000/4=1500>>1500 for his electric and water bill.
He pays $6000 / 5 = $<<6000/5=1200>>1200 for his insurances.
The total amount he pays for the bills and insurances is $1500 + $1200 = $<<1500+1200=2700>>2700.
The remaining money from his earning after paying off the bills and insurance is $6000 - $2700 = $<<6000-2700=3300>>3300.
The total amount he needs to pay for the rent and food expenses is $640 + $380 = $<<640+380=1020>>1020.
So, Dr. Jones has $3300 - $1020 = $<<3300-1020=2280>>2280 left
#### 2280
Maria's test scores are 80, 70, and 90.

Question: What score does she need to get on a fourth test so that her average score for the four tests is exactly 85?
Answer: She needs to have a total of 4*85=<<4*85=340>>340 points over the four tests.
She has 80+70+90=<<80+70+90=240>>240 points so far.
She needs 340-240=<<340-240=100>>100 on the fourth test.
#### 100
Four small panda bears and five bigger panda bears eat 25 pounds and 40 pounds of fresh bamboo sprouts every day, respectively.

Question: How many pounds of bamboo do the 9 pandas eat in a week?
Answer: The small panda bears eat a total of 4 x 25 = <<4*25=100>>100 pounds of bamboo every day.
The bigger panda bears eat a total of 5 x 40 = <<5*40=200>>200 pounds of bamboo every day.
So, the 9 pandas eat a total of 100 + 200 = <<100+200=300>>300 pounds of bamboo every day.
Therefore, they eat a total of 300 x 7 = <<300*7=2100>>2100 pounds in a week.
#### 2100
Violet is trying to figure out whether she should buy a family pass to the aquarium for $120 or pay for tickets separately.

Question: If adult tickets cost $35 and children's tickets cost $20, and Violet's family has 1 adult and 6 children, how much will she pay if she buys separate tickets?
Answer: First find the total cost of the children's tickets: 6 children * $20/child = $<<6*20=120>>120
Then add the cost of the adult ticket to find the total cost: $120 + $35 = $<<120+35=155>>155
#### 155
Liam is teaching art to a group of 10 students. He has 20 art kits that he hands out to the students to share, 1 art kit for 2 students. From those art kits half the students make 3 artworks each and half the students make 4 artworks each.

Question: How many artistic works does the whole class create?
Answer: There are 10 students in Liam's art class and 1/2 of them make a different amount of artworks than the other half, 1/2 x 10 = <<10-5=5>>5 students.
5 students make 3 artworks each, 5 x 3 = <<5*3=15>>15 artworks.
The other 5 students make 4 artworks each, 5 x 4 = <<5*4=20>>20 artworks.
Combined, the students in the class make 15 + 20 = <<15+20=35>>35 artworks.
#### 35
Lara is baking cookies using four baking trays. She places five rows of cookies on a baking tray where there are six cookies in one row.

Question: How many cookies is she baking?
Answer: Lara can bake 5 x 6 = <<5*6=30>>30 cookies in one tray.
So, Lara is baking a total of 30 x 4 = <<30*4=120>>120 cookies.
#### 120
John repairs 5 cars. 3 of the cars take 40 minutes each to repair. The remaining ones take 50% longer each to repair. He makes $20 per hour repairing cars.

Question: How much money does he make?
Answer: The 3 cars take 3*40=<<3*40=120>>120 minutes to make
He repairs 5-3=<<5-3=2>>2 more cars
They each take 40*.5=<<40*.5=20>>20 minutes longer per car
So they each take 40+20=<<40+20=60>>60 minutes
So he repaired cars for 120+2*60=<<120+2*60=240>>240 minutes
That is 240/60=<<240/60=4>>4 hours
So he made 4*20=$<<4*20=80>>80
#### 80
Holden's current master bedroom is 309 sq ft and his master bath is 150 sq ft.

Question: If he wants to add a home office/personal gym divided space that is twice as large as his bedroom and bathroom, how much sq ft will this new room have?
Answer: His bedroom is 309 sq ft and his bathroom is 150 sq ft so these two rooms are 309+150 = <<309+150=459>>459 sq ft
He wants the new room to be twice as large as his bedroom/bathroom that is 459 sq so the new room is 2*459 = <<2*459=918>>918 sq ft
#### 918
Julian has 80 Facebook friends. 60% are boys and 40% are girls. Boyd has twice as many friends who are girls and has 100 friends total.

Question: What percentage of Boyd’s friends are boys?
Answer: Julian's number of friends who are girls is .40*80 = <<.40*80=32>>32
Boyd has twice as many friends as Julian who are girls, a total of 2*32 = <<2*32=64>>64
If Boyd has 100 friends, he has 100-64 = <<100-64=36>>36 boys
The percentage of boys in Boyd's Facebook friends is 36/100*100 = <<36/100*100=36>>36
#### 36
To run his grocery store, Mr. Haj needs $4000 a day. This money is used to pay for orders done, delivery costs and employees' salaries.

Question: If he spends 2/5 of the total operation costs on employees' salary and 1/4 of the remaining amount on delivery costs, how much money does he pay for the orders done?
Answer: The total amount of money Mr. Haj used to pay for employee salary is 2/5*$4000 = $<<2/5*4000=1600>>1600
After paying the employee salaries, Mr. Haj remains with $4000-$1600 = $<<4000-1600=2400>>2400
He also uses 1/4*$2400= $<<2400/4=600>>600 on delivery costs.
The remaining amount of money that he uses to pay for orders is $2400-$600 = $<<2400-600=1800>>1800
#### 1800
John works 12 hours every other day. He gets a 30% raise from his former $20 an hour job.

Question: How much does he make in a 30 day month?
Answer: He works 30/2=<<30/2=15>>15 days
So he works 15*12=<<15*12=180>>180 hours in the month
He got a 20*.3=$<<20*.3=6>>6 an hour raise
So he gets paid 20+6=$<<20+6=26>>26 an hour
That means he makes 26*180=$<<26*180=4680>>4680
#### 4680
Jake agrees to work part of his debt off. He owed someone $100 but paid them $40 before agreeing to work off the rest. He worked for $15 an hour.

Question: How many hours did he have to work?
Answer: He has to work off $100-$40=$<<100-40=60>>60.
So he has to work $60/15=<<60/15=4>>4 hours
#### 4
There are 20 boys and 11 girls in the second grade and twice that number in the third grade.

Question: How many students are in grades 2 and 3?
Answer: There are 20 + 11 = <<20+11=31>>31 students in second grade.
There are 31 x 2 = <<31*2=62>>62 students in third grade.
In total, there are 31 + 62 = <<31+62=93>>93 students.
#### 93
Borgnine wants to see 1100 legs at the zoo. He has already seen 12 chimps, 8 lions, and 5 lizards. He is next headed to see the tarantulas.

Question: How many tarantulas does he need to see to meet his goal?
Answer: He has seen 48 chimp legs because 12 x 4 = <<12*4=48>>48
He has seen 32 lion legs because 8 x 4 = <<8*4=32>>32
He has seen 20 lizard legs because 5 x 4 = <<5*4=20>>20
He has seen 100 total legs because 48 + 32 + 20 = <<48+32+20=100>>100
He has to see 1000 tarantulas legs because 1100- 100 = <<1100-100=1000>>1000
He has to see 125 tarantulas because 1000/ 8 = <<1000/8=125>>125
#### 125
A spiral notebook costs $15, and a personal planner costs $10.

Question: How much would it cost in total to buy 4 spiral notebooks and 8 personal planners at a 20% discount?
Answer: If a spiral notebook cost $15, a 20% discount would reduce the price by 20/100 *15 = $<<15*0.2=3>>3
At a 20% discount, the buying price of a spiral notebook book is $15-$3= $<<15-3=12>>12
At the same discount, a personal planner cost would reduce by 20/100 * $10 = $<<20/100*10=2>>2
The new buying price of a personal planner will be $10-$2 =$<<10-2=8>>8
To buy four spiral notebooks at a 20% discount, you'll pay 4*$12 = $<<4*12=48>>48
At the same time discount, you'll buy eight personal planners at a cost pf 8*$8 = <<8*8=64>>64
In total, to buy eight personal planners and four spiral notebooks, you'd have to pay $64+$48 = $112
#### 112
Todd has $20. He buys 4 candy bars that cost $2 each.

Question: How much money in dollars does Todd have left?
Answer: The candy bars cost 4*2= $<<4*2=8>>8.
Todd has 20-8= $<<20-8=12>>12 left.
#### 12
Trent cries 2 tears for every three onions he chops. He needs to chop 4 onions per pot of soup.

Question: If he's making 6 pots of soup, how many tears does he cry?
Answer: First find how many onions total Trent needs to chop: 4 onions/pot * 6 pots = <<4*6=24>>24 onions
Then divide that number by three onions per 2 tears to find how many sets of two tears Trent cries: 24 onions / 3 onions = <<24/3=8>>8
Then multiply that number by the number of tears per set to find the total number of tears: 8 * 2 tears = <<8*2=16>>16 tears
#### 16
Brittany has 3 gerbils: Puffy, Muffy, and Scruffy. Puffy weighs 5 ounces more than Muffy. Muffy weighs 3 ounces less than Scruffy.

Question: If Scruffy weighs 12 ounces, how much would the scale indicate, in ounces, if Brittany put Puffy and Muffy on the scale?
Answer: Muffy weighs 12 - 3 = <<12-3=9>>9 ounces
Puffy weighs 5 + 9 = <<5+9=14>>14 ounces.
If Brittany weighs both Puffy and Muffy, the scale would read 9 + 14 = <<9+14=23>>23 ounces
#### 23
John buys 4 pounds of beef. He uses all but 1 pound in soup. He uses twice as many pounds of vegetables as beef.

Question: How many pounds of vegetables did he use?
Answer: He used 4-1=<<4-1=3>>3 pounds of beef
So he used 3*2=<<3*2=6>>6 pounds of vegetables
#### 6
Osborn is testing a new way to get dressed in the morning on school days so he goes faster and can get up later. He tracks his time for the week and on Monday is takes him 2 minutes. On Tuesday it takes him 4 minutes. On Wednesday it takes him 3 minutes. On Thursday it takes him 4 minutes. Before Friday arrives he looks at his old way of getting dressed and sees that it was taking him 3 minutes on average to get dressed.

Question: How fast does he have to get dressed on Friday so his weekly average ties his old method?
Answer: If it takes on average 3 minutes to get dressed, then it takes 15 minutes total on the school week because 5 x 3 = <<15=15>>15
Thus far this week it has taken him 13 minutes to get dressed because 2 + 4 + 3 + 4 = <<13=13>>13
To tie his previous method, he needs to take 2 minutes on Friday because 15 - 13 = <<15-13=2>>2
#### 2
Rob and Mark plan to meet at the national park. It takes 1 hour for Rob to get to the national park and it takes three times as much time for Mark to get to the national park.

Question: If Rob leaves his home at 11 a.m., at what time should Mark leave his home so that they both arrive at the same time?
Answer: It takes 1 hour * 3 = <<1*3=3>>3 hours for Mark to get to the national park.
The extra time it takes Mark to get to the national park is 3 hours - 1 hour = <<3-1=2>>2 hours
Mark should leave his home at 11 a.m. - 2 hours = <<11-2=9>>9 a.m.
#### 9
Jenny's property tax rate is 2%. Her house is currently worth $400,000. The city is about to build a new high-speed rail project nearby, which will increase her house's value by 25%. Jenny can only afford to spend $15,000/year on property tax.

Question: How many dollars worth of improvements can she make to her house before her property tax bill gets too high?
Answer: First find how much the rail project will increase the house value by multiplying the initial value by 25%: $400,000 * .25 = $<<400000*.25=100000>>100,000
Then add that amount to the initial value to find the new value: $100,000 + $400,000 = $<<100000+400000=500000>>500,000
Then divide the maximum amount of property tax Jenny can afford to pay by the property tax rate to find the maximum value her house can have: $15,000 / .02 = $<<15000/.02=750000>>750,000
Now subtract the house's value after the rail project from the maximum value to find how much value the improvements can have: $750,000 - $500,000 = $<<750000-500000=250000>>250,000
#### 250000
If there are four times as many red crayons as blue crayons in a box, and there are 3 blue crayons.

Question: How many crayons total are in the box?
Answer: Red crayons: 4(3)=12
Total crayons: 12+3=<<12+3=15>>15 crayons
#### 15
Brenda raises mice, and her adult mice recently had three litters of 8 each. She gave a sixth of the baby mice to her friend Robbie to keep as pets. She sold three times the number of babies she gave Robbie to a pet store. Half of the remaining mice were sold to snake owners as feeder mice.

Question: How many baby mice did Brenda have left?
Answer: Brenda’s mice had 3 * 8 = <<3*8=24>>24 baby mice.
She gave Robbie 24 / 6 = <<24/6=4>>4 mice.
Thus, she sold 3 * 4 = <<3*4=12>>12 mice to the pet store.
She had 24 - 12 - 4 = <<24-12-4=8>>8 mice remaining.
She sold 8 / 2 = <<8/2=4>>4 as feeder mice.
Thus, Brenda had 8 - 4 = <<8-4=4>>4 mice left.
#### 4
A magazine costs $3 each. Jewel bought 10 magazines to be sold at $3.50 each.

Question: How much will be Jewel gain from selling these?
Answer: Jewel's gain for each magazine is $3.50 - $3 = $<<3.5-3=0.50>>0.50.
Thus, her total gain will be $0.50 x 10 = $<<0.50*10=5>>5.
#### 5
Leila went to the supermarket to get some groceries. Then she headed to her mechanic to get her automobile fixed.

Question: If fixing her automobile cost $350 which was $50 more than thrice the amount she spent at the supermarket, how much has she spent altogether?
Answer: Reversing the steps to obtain the amount she spent at the supermarket, $50 less than $350 is $350-$50 = $<<350-50=300>>300
If $300 was thrice the amount she spent at the supermarket, then the amount spent at the supermarket was $300/3 = $<<300/3=100>>100
In addition to what she spent fixing her auto, she spent $100+$350 = $<<100+350=450>>450 altogether
#### 450
On a shopping trip in a crowded store, Josie had to wait 3 minutes for a cart, 13 minutes for an employee to unlock a cabinet to get her a product, 14 minutes for a stocker to restock a shelf with what she wanted, and 18 minutes in line to check out. Her shopping trip took an hour and a half.

Question: How many minutes did Josie spend shopping instead of waiting?
Answer: There are 60 minutes in an hour, so the trip took 1 1/2 * 60 = 90 minutes.
Josie spent 3 + 13 + 14 + 18 = <<3+13+14+18=48>>48 minutes waiting.
Thus, she spent 90 - 48 = <<90-48=42>>42 minutes shopping.
#### 42
In 10 years, Terry will be 4 times the age that Nora is currently.

Question: If Nora is currently 10 years old, how old is Terry now?
Answer: Terry will be 4*10=<<4*10=40>>40 years old in 10 years

Currently, Terry is 40-10 = <<40-10=30>>30 years old.
#### 30
A frog lays 800 eggs a year. 10 percent dry up, and 70 percent are eaten.

Question: 1/4 of the remaining eggs end up hatching, how many frogs hatch out of the 800?
Answer: Dried up:800(.10)=80 eggs
800(.70)=560 eggs
Total left:800-80-560=<<800-80-560=160>>160 eggs
160/4=<<160/4=40>>40 eggs survive to hatch
#### 40
Elvis is releasing a new album with 10 songs, but he doesn't want to waste too much time on writing. He spends 5 hours in the studio, where he writes, records, and edits his songs. Each song takes 12 minutes to record, then it takes 30 minutes to edit all of his songs.

Question: How many minutes did it take Elvis to write each song, if each song took the same amount of time to write?
Answer: 5 hours in the studio is the same as 5 * 60 = <<5*60=300>>300 minutes.
To record all of his songs, Elvis takes 12 * 10 = <<12*10=120>>120 minutes.
After editing and recording 300 – 120 – 30 = <<300-120-30=150>>150 minutes are left to write all of his songs.
Songwriting therefore took 150 / 10 = <<150/10=15>>15 minutes per song.
#### 15
Brian likes to read books. He read one book that had 20 chapters, two books that had 15 chapters each, and one book that had half the chapters of the three previous books put together.

Question: How many chapters of books did Brian read?
Answer: Brian read two books with 15 chapters, so he read 2*15=<<2*15=30>>30 chapters.
He also read a book with 20 chapters, bringing the total for the first three to 30+20=<<30+20=50>>50 chapters.
He then read a book with half the chapters of his cumulative total so far, so it had 50/2=<<50/2=25>>25 chapters
In total, he read 30+20+25=<<30+20+25=75>>75 chapters.
#### 75
Ruth is counting the number of spots on her cow. The cow has 16 spots on its left side and three times that number plus 7 on its right side.

Question: How many spots does it have total?
Answer: First multiply the number of spots on the left side by 3: 16 spots * 3 = <<16*3=48>>48 spots
Then add 7 to find the number of spots on the right side: 48 spots + 7 spots = <<48+7=55>>55 spots
Then add the number of spots on each side to find the total number of spots: 55 spots + 16 spots = <<55+16=71>>71 spots
#### 71