acnagle/gsm8k-filtered huggingface dataset:
A group of 300 athletes spent Saturday night at Ultimate Fitness Camp. The next morning, for 4 hours straight, they left the camp at a rate of 28 athletes per hour. Over the next 7 hours, a new group of athletes trickled into the camp at a rate of 15 athletes per hour. Immediately thereafter, the camp gate was shut and everyone went to bed.

Question: What is the difference in the total number of athletes in the camp over the two nights?
Answer: The number that left the camp on Saturday morning was 4*28 = <<4*28=112>>112 athletes
This means that in the camp there remained 300-112 = <<300-112=188>>188 athletes.
The new group trickling in on Sunday morning comprised 7*15 = <<7*15=105>>105 athletes
The number that slept at the camp on Sunday night is therefore 188 + 105 = <<188+105=293>>293 athletes
Since there were 300 athletes on Saturday night, the difference is 300 - 293 = <<300-293=7>>7 athletes.
#### 7
A mother is making her own bubble mix out of dish soap and water for her two-year-old son. The recipe she is following calls for 3 tablespoons of soap for every 1 cup of water.

Question: If the container she hopes to store the bubble mix in can hold 40 ounces of liquid, and there are 8 ounces in a cup of water, how many tablespoons of soap should she add to the container (assuming that the soap itself doesn't count towards the capacity of the container)?
Answer: The 40-ounce container can hold 40/8 = <<40/8=5>>5 cups of water.
This means that 5*3 = <<5*3=15>>15 tablespoons of soap should be used, since each cup of water requires 3 tablespoons of soap.
#### 15
A bird is building a nest from twigs. The bird has put twelve twigs together already to make a circle. For each twig it placed into the circle, it wants to weave in six more twigs to fill out the nest. It knows a tree that has dropped a third of the twigs it needs.

Question: How many twigs will the bird still need to find to finish its nest?
Answer: The bird wants 12 * 6 = <<12*6=72>>72 twigs to add to the nest.
It knows a tree that has dropped 72 * 1 / 3 = <<72*1/3=24>>24 twigs.
Thus, the bird will still need 72 - 24 = <<72-24=48>>48 twigs to finish the nest.
#### 48
Nellie had 380 legos, but she lost 57 of them and gave her sister 24 legos.

Question: How many legos does she have now?
Answer: After losing 57 legos, Nellie has 380 - 57 = <<380-57=323>>323 legos.
After giving her sister 24 legos Nellie has 323 - 24 = <<323-24=299>>299 legos
#### 299
Betsy won 5 games of Monopoly. Helen won twice as many as Betsy and Susan won three times as many as Betsy.

Question: Between them, how many games have they won?
Answer: Helen won twice as many games as Betsy's 5 so Helen won 2*5 = <<10=10>>10 games
Susan won three times as many games as Betsy's 5 so Susan won 3*5 = <<3*5=15>>15 games
When you combine their wins, together they won 5+10+15 = <<5+10+15=30>>30 games total
#### 30
A psychiatrist has 4 patients that need 25 sessions in total. One of the patients needs 6 sessions. Another patient needs 5 more than that.

Question: How many sessions would the remaining patients need?
Answer: The second patient needs 6+5 = <<6+5=11>>11 sessions.
The first two patients need 6+11=<<6+11=17>>17 sessions total.
25-17=<<25-17=8>>8 sessions.
#### 8
A crayon box has 24 crayons total. 8 crayons are red, 6 crayons are blue, there are 2/3 the number of green crayons as blue crayons, and the rest of the crayons are pink.

Question: How many crayons are pink?
Answer: There are 2/3 green crayons * 6 blue crayons = <<2/3*6=4>>4 green crayons.
The pink crayons left in the box are 24 crayons total - 8 red - 6 blue - 4 green = <<24-8-6-4=6>>6 pink crayons.
#### 6
David and Brenda are playing Scrabble. Brenda is ahead by 22 points when she makes a 15-point play. David responds with a 32-point play.

Question: By how many points is Brenda now ahead?
Answer: Brenda is 22+15=<<22+15=37>>37 points ahead after her play.
Then she is 37-32=<<37-32=5>>5 points ahead.
#### 5
John books 3 nights at a hotel room for $250 a night. He has a $100 discount.

Question: How much does he pay?
Answer: The cost is 250*3=$<<250*3=750>>750
So he spends 750-100=$<<750-100=650>>650
#### 650
Karen packs peanut butter sandwiches in her daughter's lunch 2 randomly chosen days of the week. The other 3 school days, she packs a ham sandwich. She packs a piece of cake on one randomly chosen day and cookies the other four days.

Question: What is the probability, expressed as a percentage, that Karen packs a ham sandwich and cake on the same day?
Answer: There are 5 school days in a week, so the probability Karen packs a ham sandwich is 3/5 and the probability she packs cake is 1/5
Multiply the two probabilities to find the probability both things happen: 3/5 * 1/5 = 3/25
Now divide 3 by 25 and multiply by 100% to express this probability as a percentage: 3/25 * 100% = 12%
#### 12
Matt can paint a house in 12 hours. Patty can paint the same house in one third the time. Rachel can paint the same house in 5 more than double the amount of hours as Patty.

Question: How long will it take Rachel to paint the house?
Answer: Patty: 12/3=<<12/3=4>>4 hours
Rachel: 5+2(4)=13 hours
#### 13
Nissa is calculating a jail sentence for a man who was convicted of burglary. The base sentence is 1 year of jail for every $5,000 of goods stolen. The burglar is going to have his sentence length increased by 25% because this is his third offense, plus 2 additional years for resisting arrest.

Question: How many years total is the burglar's sentence if he stole $40,000 worth of goods?
Answer: First find how many years the base sentence will be: $40,000 / 1 year/$5,000 = <<40000/5000=8>>8 years
Then find how long the increase for the third offense is: 8 years * 25% = <<8*25*.01=2>>2 years
Then add the third-offense increase and the sentence for resisting arrest to the base sentence: 8 years + 2 years + 2 years = <<8+2+2=12>>12 years
#### 12
Sarah bought 12 lollipops filled with caramel for a total of 3 dollars. She offered to share one-quarter of the lollipops with her friend, Julie, but Julie insisted on reimbursing Sarah for the cost of the lollipops shared.

Question: How much money, in cents, did Julie give Sarah to pay for the shared lollipops?
Answer: Since one dollar is 100 cents, then 3 dollars is 3*100=<<3*100=300>>300 cents.
The cost for one lollipop is 300/12=<<300/12=25>>25 cents.
One-quarter of the lollipops is 12/4=<<12/4=3>>3 lollipops.
At 25 cents per lollypop, 3 lolly’s cost 3*25=<<3*25=75>>75 cents.
#### 75
Super Clean Car Wash Company cleans 80 cars per day. They make $5 per car washed.

Question: How much money will they make in 5 days?
Answer: Each day they will make 80 × $5 = $<<80*5=400>>400.
They will make $400 × 5 = $<<400*5=2000>>2000 in 5 days.
#### 2000
Mike has earned a total of $160 in wages this week. He received the wages for his first job, then later received the wages from his second job where he works 12 hours a week.

Question: If his second job pays $9 per hour then how much money, in dollars, did Mike receive from his first job?
Answer: From his second job, Mike receives $9/hour * 12 hours = $<<9*12=108>>108.
He therefore earned $160 – $108 = $<<52=52>>52 from his first job.
#### 52
In a game, Samanta has 8 more points than Mark, and Mark has 50% more points than Eric. Eric has 6 points.

Question: How many points do Samanta, Mark, and Eric have in total?
Answer: Mark has 50/100 * 6 = <<50/100*6=3>>3 points more than Eric.
So Mark has 6 + 3 = <<6+3=9>>9 points.
That means Samanta has 9 + 8 = <<9+8=17>>17 points.
So in total Samanta, Mark, and Eric have 6 + 9 + 17 = <<6+9+17=32>>32 points.
#### 32
The grocery store sells chips for $2 per packet and corn chips for $1.5 per packet. John would like to buy 15 packets of chips, and with the rest of the money he has left, buy as many packets of corn chips as he can.

Question: How many packets of corn chips could John buy if he has $45 for his entire purchase?
Answer: John wants to buy 15 packets of chips, which will cost him 15 * 2 = $<<15*2=30>>30.
So John would have 45 - 30 = $<<45-30=15>>15 left for the corn chips.
John could buy for the rest of the money 15 / 1.5 = <<15/1.5=10>>10 packets of corn chips.
#### 10
A school choir needs robes for each of its 30 singers. Currently, the school has only 12 robes so they decided to buy the rest.

Question: If each robe costs $2, how much will the school spend?
Answer: The school needs to buy 30 - 12 = <<30-12=18>>18 robes.
So the school will spend 18 x $2 = $<<18*2=36>>36.
#### 36
Mr. Wong harvested 560 mangoes from the tree outside his house. He sold half of it at the market and distributed the rest evenly among 8 of his neighbors.

Question: How many mangoes does each neighbor receive?
Answer: Mr. Wong had 560/2 = <<560/2=280>>280 mangoes left
Each of his neighbors received 280/8 = <<280/8=35>>35 mangoes
#### 35
Jenna is hemming her prom dress. The dress's hem is 3 feet long. Each stitch Jenna makes is 1/4 inch long.

Question: If Jenna makes 24 stitches per minute, how many minutes does it take Jenna to hem her dress?
Answer: First find how many inches the hem is by multiplying the length in feet by the number of inches per foot: 3 feet * 12 inches/foot = <<3*12=36>>36 inches
Then divide the length in inches by the length of each stitch to find how many stitches Jenna makes: 36 inches / .25 inches = <<36/.25=144>>144 stitches
Then divide the number of stitches by Jenna's stitching rate to find how long it takes her: 144 stitches / 24 stitches/minute = <<144/24=6>>6 minutes
#### 6
Josie received $50 as a gift. She plans to buy two cassette tapes that cost $9 each and a headphone set that costs $25.

Question: How much money will she have left?
Answer: The cassette tapes will cost 2 × 9 = $<<2*9=18>>18.
She spends 18 + 25 = $<<18+25=43>>43 in total.
Josie will have 50 - 43 = $<<50-43=7>>7 left.
#### 7
There are 3 rows of people relaxing at the beach. The first row is made up of 24 people until 3 people get up to wade in the water. 5 people from the second row, which originally held 20 people, go to join them. The third row is made up of 18 people.

Question: How many people are left relaxing on the beach?
Answer: In the first row, there are now 24 – 3 = <<24-3=21>>21 people.
In the second row, there are now 20 – 5 = <<20-5=15>>15 people.
So in total there are 21 in the first row + 15 in the second row + 18 in the third row = <<21+15+18=54>>54 people.
#### 54
Carly practices her butterfly stroke for 3 hours a day, 4 days a week, and her backstroke for 2 hours a day, six days a week.

Question: How much time does she spend practicing swimming in a month with 4 weeks?
Answer: First find the total time Carly practices the butterfly stroke in a week: 3 hours/day * 4 days/week = <<3*4=12>>12 hours/week
Then find the total time Carly practices the backstroke stroke in a week: 2 hours/day * 6 days/week = <<2*6=12>>12 hours/week
Then add those two amounts of time to find her total practice time each week: 12 hours/week + 12 hours/week = <<12+12=24>>24 hours/week
Then multiply her weekly practice time by the number of weeks in a month to find her monthly practice time: 24 hours/week * 4 weeks/month = <<24*4=96>>96 hours/month
#### 96
There are 248 pages in a book. Joanna can read 16 pages per hour. On Monday, she reads for 3 hours. On Tuesday, she reads for 6.5 hours.

Question: How many more hours does she need to read to finish the book?
Answer: On Monday, Joanna reads 3*16=<<3*16=48>>48 pages.
On Tuesday, Joanna reads 6.5 * 16 =<<6.5*16=104>>104 pages.
So far, she has read 48 +104 =<<48+104=152>>152 pages.
Thus, she has 248-152 = <<248-152=96>>96 pages left.
She will need to read for 96/16 = <<96/16=6>>6 hours to finish the book.
#### 6
A baker bought cooking ingredients in the supermarket. She bought 3 boxes of flour that cost $3 each box, 3 trays of eggs that cost $10 for each tray, 7 liters of milk that cost $5 each liter, and 2 boxes of baking soda that cost $3 each box.

Question: How much will she have to pay for everything?
Answer: The total cost for the flour is 3 x $3 = $<<3*3=9>>9.
The total cost of the tray of eggs is 3 x $10 = $<<3*10=30>>30.
The total cost for the liter of milk is 7 x $5 = $<<7*5=35>>35.
The total cost for the box of baking soda is 2 x $3 = $<<2*3=6>>6.
Therefore, the total cost for all the ingredients is $9 + $30 + $35 + $6 = $<<9+30+35+6=80>>80.
#### 80
Timothy and Theresa go to the movies very often. Timothy went to the movies 7 more times in 2010 that he did in 2009. In 2009, Timothy went to the movies 24 times. In 2010 Theresa went to see twice as many movies as Timothy did, but in 2009, she only saw half as many as he did.

Question: How many movies did Timothy and Theresa go on in both 2009 and 2010?
Answer: In 2010 Timothy watched 24+7 = <<24+7=31>>31 movies.
In 2010 Theresa watched 31*2 = <<31*2=62>>62 movies.
In 2009 Theresa watched 24/2 = <<24/2=12>>12 movies.
In both 2009 and 2010 Timothy and Theresa watched 24+31+62+12 = <<24+31+62+12=129>>129 movies.
#### 129
A pet store has six dogs for sale. They have half as many cats, twice as many birds, and thrice as many fish for sale.

Question: How many animals are for sale in the pet store?
Answer: The pet store has 6/2 = <<6/2=3>>3 cats for sale.
They have 6 x 2 = <<6*2=12>>12 birds for sale.
They have 6 x 3 = <<6*3=18>>18 birds for sale.
Therefore, there are a total of 6 + 3 + 12 + 18 = <<6+3+12+18=39>>39 pets for sale.
#### 39
A candy store sold 20 pounds of fudge for $2.50/pound, 5 dozen chocolate truffles for $1.50 each and 3 dozen chocolate-covered pretzels at $2.00 each.

Question: How much money did the candy store make?
Answer: 20 pounds of fudge at $2.50/pounds is 20*2.50 = $<<20*2.50=50.00>>50.00
The 5 dozen truffles were sold in individual units so a dozen is equal to 12 so 5*12=<<5*12=60>>60
60 chocolate truffles, at $1.50 each sold for 60*1.50 = $<<60*1.50=90.00>>90.00
The 3 dozen chocolate pretzels sold in individual units so a dozen is equal to 12 so 3*12 = <<3*12=36>>36
36 chocolate pretzels sold for $2.00 each sold for 36*2 = $<<36*2=72.00>>72.00
All total, the store made 50+90+72 = $<<50+90+72=212.00>>212.00 from candy sales
#### 212
Vanessa has decided to sell some of her clothes to make pocket money, offering a standard price for each type of item. She made a total of $69 by selling 7 dresses and 4 shirts.

Question: If she managed to sell each shirt for $5, how much did the dresses sell for each?
Answer: Let V be the cost of each dress.
(7 * V) + (4 * 5) = $69.
So, 7 * V + 20 = $69.
7V = $49.
V = $49/7.
V = $<<7=7>>7.
#### 7
The recipe for a four-person cake requires 2 eggs and 4 cups of milk. Tyler wants to use this recipe to make a cake for eight people.

Question: If Tyler has 3 eggs in the fridge, how many more eggs does Tyler need to buy?
Answer: A cake for eight people would require 8 / 4 = <<8/4=2>>2 times as many eggs as a 4 people cake.
If a 4-person cake requires 2 eggs, then an 8-person cake requires 2 x 2 = <<2*2=4>>4 eggs.
Tyler needs to buy 4 - 3 = <<4-3=1>>1 more egg.
#### 1
Sydney and Conner are having a three day rock collecting contest to see who can have the largest collection after adding to their existing collections. Before they start, Sydney has 837 rocks and Conner has 723. On day one, Sydney collects 4 rocks and Conner collects 8 times as many. On day two Sydney rests and Conner collects 123. On the third day, Sydney collects twice as many as Conner did on the first day.

Question: How many does Conner have to collect on day three to make sure he at least ties Sydney?
Answer: On day one Conner collects 32 rocks because 8 x 4 = <<8*4=32>>32
On day three Sydney collects 64 because 32 x 2 = <<32*2=64>>64
After three days Sydney has 915 rocks because 837 + 0 + 4 + 64 =<<837+0+4+64=905>>905
Before the third day Conner has 878 because 723 + 32 + 123 = <<723+32+123=878>>878
Conner needs to collect 37 on day three to tie Sydney because 905 - 878 = 27
#### 27
A thirsty traveler found an oasis in the desert. He drank 32 ounces of water. His camel drank seven times as much as he did. There are 128 ounces in a gallon.

Question: How many gallons of water did they drink altogether?
Answer: The traveler’s camel drank 7 * 32 = <<7*32=224>>224 ounces of water.
Together, the traveler and his camel drank 32 + 224 = <<32+224=256>>256 ounces.
Thus, they drank 256 / 128 = <<256/128=2>>2 gallons of water altogether.
#### 2
This year the Oscar swag bags include two diamond earrings that cost $6,000 each, a new iPhone that costs $2,000, and some designer scarves that each cost $1,500.

Question: If the total value of the swag bag is $20,000, how many scarves are there?
Answer: First find the total cost of the diamond earrings: $6,000/earring * 2 earrings = $<<6000*2=12000>>12,000
Then subtract the cost of the earrings and iPhone from the total cost of the bags to find the cost of all the scarves: $20,000 - $12,000 - $2,000 = $<<20000-12000-2000=6000>>6,000
Then divide the total cost of the scarves by the cost per scarf to find the number of scarves: $6,000 / $1,500/scarf = <<6000/1500=4>>4 scarves
#### 4
Tim won a $100 raffle. He gave away 20% to his friend.

Question: How much did he keep?
Answer: He gave away 100*.2=$<<100*.2=20>>20
So he kept 100-20=$<<100-20=80>>80
#### 80
Mark orders 100 chicken nuggets. A 20 box of chicken nuggets cost $4.

Question: How much did he pay for the chicken nuggets?
Answer: He orders 100/20=<<100/20=5>>5 boxes
So that means he spent 5*4=$<<5*4=20>>20 on nuggets
#### 20
A supermarket has 2355 loaves of bread at the start of the day. By afternoon, 629 loaves are sold, and a further 489 loaves are delivered to the supermarket by their supplier in the evening.

Question: How many loaves of bread are there at the end of the day?
Answer: In the afternoon there are 2355 - 629 = <<2355-629=1726>>1726 loaves of bread left.
By the evening there is a delivery and there are now 1726 + 489 = <<1726+489=2215>>2215 loaves of bread.
#### 2215
Claire wants to make 2 cakes for her mother. Two packages of flour are required for making a cake.

Question: If 1 package of flour is $3, how much does she pay for the flour that is enough to make 2 cakes?
Answer: She needs 2*2=<<2*2=4>>4 packages of flour for 2 cakes.
4 packages of flour cost 4*$3=$<<4*3=12>>12.
#### 12
Ann is 6 years old. Her brother Tom is now two times older.

Question: What will be the sum of their ages 10 years later?
Answer: Tom is currently two times older than Ann, which means he is 6 * 2 = <<6*2=12>>12 years old.
In ten years Ann is going to be 6 + 10 = 16 years old.
And Tom is going to be 12 + 10 = <<12+10=22>>22 years old.
So the sum of their ages will be 16 + 22 = <<16+22=38>>38.
#### 38
James gets bored with his game so decides to play a different one. That game promises 100 hours of gameplay but 80% of that is boring grinding. However, the expansion does add another 30 hours of enjoyable gameplay.

Question: How much enjoyable gameplay does James get?
Answer: The first game was 100*.8=<<100*.8=80>>80 hours of grinding
So it was 100-80=<<100-80=20>>20 hours of good gameplay
The expansion brought the time of good gameplay to 20+30=<<20+30=50>>50 hours
#### 50
Alden had 50 nephews ten years ago. This is half the number of nephews Alden has now.

Question: If Vihaan has 60 more nephews than Alden now, how many nephews do the two have altogether?
Answer: If the number of nephews Alden had 50 years ago is half the number of nephews he has now, Alden has 50*2 = <<50*2=100>>100 nephews.
Vihaan has 60 more nephews than Alden, meaning currently Vihaan has 100+60 = <<100+60=160>>160 nephews.
Altogether, the two have 160+100 = <<160+100=260>>260 nephews.
#### 260
Elsie has a specific amount of wet wipes in a container in the morning. Throughout the day, she refills the container with 10 more wipes after using up 20. By nighttime, she only has 60 wipes left.

Question: How many wipes were in the container in the morning?
Answer: Let w be the number of wet wipes Elsie had in the morning.
Throughout the day, she used w-20 wet wipes.
Once that happened, she had to refill the container resulting in w-20+10 = w<<-20+10=-10>>-10 wet wipes.
By nighttime, she had w-10=60 wipes.
So then, w=60+10=<<60+10=70>>70.
She started with w=<<70=70>>70 wipes.
#### 70
One necklace is worth $34. Bob decided to buy one for his wife. But, he also bought a book, which is $5 more expensive than the necklace. Before he went shopping, Bob set a limit and decided not to spend more than $70.

Question: How many dollars over the "limit" did Bob spend?
Answer: The book is $5 more expensive than the necklace, which means the book costs 34 + 5 = $<<34+5=39>>39.
Both products which Bob wants to buy cost in total 39 + 34 = $<<39+34=73>>73.
So Bob will spend 73 - 70 = $<<73-70=3>>3 over the limit.
#### 3
Tom has only been getting 6 hours of sleep a day. He increases that by 1/3.

Question: How many hours of sleep does he get per night?
Answer: He increases his sleep by 6/3=<<6/3=2>>2 hour per night
So he now gets 6+2=<<6+2=8>>8 hours of sleep per night
#### 8
Sadie, Ariana and Sarah are running a relay race. Each part of the race is a different length and covers different terrain. It takes Sadie 2 hours to run through the forest at an average speed of 3 miles per hour. Ariana sprints across the open field on her section at 6 miles per hour for half an hour.

Question: If Sarah runs along the beach at four miles per hour and their total time for the race is four and half hours, what is the total distance of the race?
Answer: Sadie ran for 3 miles/hour * 2 hour = <<3*2=6>>6 miles.
Ariana covered a distance of 6 miles/hour * (1/2) hour = 3 miles.
Sarah ran for 4.5 hours – 2 hours – 0.5 hours = <<4.5-2-0.5=2>>2 hours.
In this time, Sarah traveled a distance of 4 miles/hour * 2 hours = <<4*2=8>>8 miles.
The total distance for the race was 6 miles + 3 miles + 8 miles = <<6+3+8=17>>17 miles.
#### 17
A company has 1000 employees. There will be three rounds of layoffs. For each round of layoff, 10% of the remaining employees will be laid off.

Question: How many employees will be laid off in total?
Answer: The first round will result in 1000 * 10% = <<1000*10*.01=100>>100 employee layoffs.
There are 1000 - 100 = <<1000-100=900>>900 employees remaining.
The second round will result in 900 * 10% = <<900*10*.01=90>>90 employee layoffs.
There are 900 - 90 = <<900-90=810>>810 employees remaining.
The third round will result in 810 * 10% = <<810*10*.01=81>>81 employee layoffs.
The total number of of employees laid off is 100 + 90 + 81 = <<100+90+81=271>>271.
#### 271
Sam spends sixty minutes studying Science, eighty minutes in Math, and forty minutes in Literature.

Question: How many hours does Sam spend studying the three subjects?
Answer: The total number of minutes he studies the three subjects is 60 + 80 + 40 = <<60+80+40=180>>180 minutes.
Therefore, Sam spends 180/60 = <<180/60=3>>3 hours.
#### 3
Lindsey saved $50 in September, she saved $37 in October, and $11 in November. Lindsey's mom said that since Lindsey had saved more than $75,  she would give Lindsey $25. Then Lindsey spent $87 on a video game.

Question: How much money did Lindsey have left?
Answer: Lindsey saved $50 + $37 + $11 = $<<50+37+11=98>>98.
$98 is greater than $75, so Lindsey is given an addition $25 + her original $98 = $<<98+25=123>>123.
Lindsey had $123 - $87 video game = $<<123-87=36>>36 remaining.
#### 36
James decides to use tannerite to blow things up to reveal his baby's gender. The explosion ignites both his neighbors' houses and attracts a police officer, who arrests James on two count of arson, one count of manufacturing explosives, and one count of domestic terrorism.

Question: If the arson counts each carry a 6-year sentence, the explosives sentence is twice as long as the total arson sentence, and the domestic terrorism charge's sentence is 20 years, how long might James spend in jail?
Answer: First find the total sentence length for the arson: 6 years/count * 2 counts = 12 years
Then find the total sentence length for the explosives: 12 years * 2 = <<12*2=24>>24 years
Then add each sentence to find the total sentence length: 12 years + 24 years + 20 years = <<12+24+20=56>>56 years
#### 56