Question: James decides to buy himself a new barbell. It cost 30% more than his old $250 barbell. How much did it cost?
Answer: It cost 250 * .3 = $75 more than his old barbell. So it cost 250 + 75 = $325. The answer is 325.
[Question]The area of a forest is three times the area of the square-shaped street. If the street has a length of 100 meters on one side and the number of trees per square meter in the forest is 4, calculate the total number of trees in the forest.
[Answer]Since the area of a square is sides squared, the area of the square - shaped street is 100 * 100 = 10000 square meters. The area of the forest is three times the area of the square - shaped street, a total of 3 * 10000 = 30000 square meters. If the number of trees per square meter in the forest is 4, there are 4 * 30000 = 120000 trees in the forest. The answer is 120000.
Q: John took a test with 80 questions. For the first 40 questions, she got 90% right. For the next 40 questions, she gets 95% right. How many total questions does she get right?
A: He gets 40 * .9 = 36 questions right for the first part. For the second part, he gets 40 * .95 = 38 questions right. So he gets a total of 36 + 38 = 74 questions right. The answer is 74.
Question: If Jade earns $1600 per month and spent 75% of it on living expenses, one-fifth on insurance, and saves the rest, how much does she save per month?
Answer: Jade spends $1600 x 75 / 100 = $1200 for living expenses. She spends $1600 x 1 / 5 = $320 for insurance. She spends a total of $1200 + $320 = $1520 for living expenses and insurance. So, she saves $1600 - $1520 = $80 per month. The answer is 80.
[Question]Snap, Crackle, and Pop spend $150 on cereal in a grocery store. Snap spends twice as much as Crackle. Crackle spends 3 times as much as Pop. How much did Pop spend?
[Answer]Let x represent the amount that Pop spent in $. Crackle: 3x. Snap:2(3x) = 6x. x + 3x + 6x = 150. 10x = 150. x = 15. The answer is 15.
[Question]Percy wants to save up for a new PlayStation, which costs $500. He gets $200 on his birthday and $150 at Christmas. To make the rest of the money, he's going to sell his old PlayStation games for $7.5 each. How many games does he need to sell to reach his goal?
[Answer]
He needs to earn $150 more dollars because 500 - 200 - 150 = 150. He needs to sell 20 games because 150 / 7.5 = 20. The answer is 20.