Q: The number of short students in a class is 2/5 of the total number of students. If there are 90 tall students, and the class has 400 students, calculate the total number of students with average height.
A: The number of short students in the class is 2 / 5 * 400 = 160. The total number of short and tall students is 160 + 90 = 250. Since there are 400 students in the class, the number of students with average height is 400 - 250 = 150. The answer is 150.
Question: You start a business selling charm bracelets. You spend $1 on the string for each bracelet and $3 on beads for each bracelet. You sell the bracelets for $6 each. If you sell 25 bracelets, how much profit will you make?
Answer: It costs $1 + $3 = $4 to make each bracelet. Your total cost is 25 * $4 = $100. Total revenue is 25 * $6 = $150. Total profit is $150 - $100 = $50. The answer is 50.
[Question]Brady will make $450 more in a year than Dwayne. If Dwayne makes $1,500 in a year, how much will Brady and Dwayne make combined in a year?
[Answer]Brady will make $450 + $1500 = $1950. Combined, Brady and Dwayne will make $1950 + $1500 = $3450 in a year. The answer is 3450.
Q: Robin likes to bake cupcakes for friends and to make her puppy North happy. Once Robin ate four cupcakes with chocolate sauce and twice as many cupcakes with buttercream frosting on her own. How many cupcakes did Robin eat?
A: Robin ate twice as many buttercream cupcakes as chocolate sauce cupcakes, or 2 * 4 = 8. So in total she ate 4 + 8 = 12 cupcakes. The answer is 12.
Question: Alison bought some storage tubs for her garage. She bought 3 large ones and 6 small ones, for $48 total. If the large tubs cost $6, how much do the small ones cost?
Answer: Let t be the price of the small tubs. 3 * 6 + 6 * t = 48. 18 + 6 * t = 48. 6 * t = 48 - 18 = 30. 6t = 30. t = 5 dollars for each small tub. The answer is 5.
Q: Wanda weighs 30 pounds more than Yola currently. Wanda also weighs 80 pounds more than Yola did 2 years ago. How much did Yola weigh 2 years ago if she currently weighs 220 pounds?
A:
If Yola currently weighs 220 pounds, then Wanda, who weighs 30 pounds more than Yola, weighs 220 + 30 = 250 pounds. Wanda also weighs 80 pounds more than Yola did 2 years ago, meaning Yola weighed 250 - 80 = 170 pounds 2 years ago. The answer is 170.