[Question]Greg is riding his bike around town and notices that each block he rides, his wheels rotate 200 times. He's now on a a trail and wants to make sure he rides at least 8 blocks. His wheels have already rotated 600 times, how many more times do they need to rotate to reach his goal?
[Answer]They need to rotate 1,600 times because 8 x 200 = 1,600. They need to rotate 1,000 more times because 1,600 - 600 = 1,000. The answer is 1000.

[Question]A high school bowling team's 3 members scored a total of 810 points in their first match. The first bowler scored 1/3 as many points as the second, and the second bowler scored 3 times as high as the third bowler. How many points did the third bowler score?
[Answer]Let x represent the score of the third bowler. Bowler 2:3x. Bowler 1:3x(1 / 3) = x. Total:x + 3x + x = 810. 5x = 810. x = 162 points. The answer is 162.

[Question]Brad wanted to set up a lemonade stand to earn some money. Every gallon of lemonade would yield 16 glasses. He figured it would cost him $3.50 to make every gallon of lemonade. He made 2 gallons to sell and decided he would sell each glass for $1.00 He drank 5 glasses while sitting in his stand. He sold all but 6 glasses of lemonade. How much net profit did Brad earn?
[Answer]He made 2 gallons and each gallon had 16 glasses so 2 * 16 = 32 glasses. He drank 5 glasses and had 6 left over which means he would not earn money on 5 + 6 = 11 glasses. The total revenue would come from 32 - 11 = 21 glasses. Each gallon cost $3.50 to make so the total cost was 2 * 3.50 = $7.00. He sold 21 glasses at $1.00 per glass for a total of 1 * 21 = $21.00. When you take his earnings of $21.00 and subtract the cost of $7.00 his total net profit was 21 - 7 = $14.00. The answer is 14.

[Question]In a town where 60% of the citizens own a pet, half own a dog and 30 own a cat. How many citizens are in the town?
[Answer]
Half the pet - owners have a cat because 1 - 1 / 2 = 1 / 2. There are 60 pet owners because 30 / (1 / 2) = 60. The town has 100 citizens because 60 / .6 = 100. The answer is 100.