Reasoning and answer: He increased his speed by 150 * .3 = 45 mph. So his new speed was 150 + 45 = 195 mph. He increased it a further 10 mph so his new speed is 195 + 10 = 205 mph.
The answer: 205
What was the question?
Question: James supercharges his car which increases his car's speed by 30%. He then cuts weight by 15% which increases the speed a further 10 mph. If his car's original speed was 150 mph what is the new speed?


From the ukuleles, there are 2 * 4 = 8 strings. From the guitars, there are 4 * 6 = 24 strings. From the violins, there are 40 - 8 - 24 = 8 strings. The total number of violins Francis' family has is 8 / 4 = 2 violins.
The answer: 2
Reverse engineering the question: Francis' family has 2 ukuleles, 4 guitars, and a certain number of violins. Each ukulele has 4 strings. Each guitar has 6 strings. Each violin has 4 strings. If the total number of strings among the ukuleles, guitars, and violins is 40 strings, how many violins does Francis' family have?


Reasoning and answer: It cost 250 * .3 = $75 more than his old barbell. So it cost 250 + 75 = $325.
The answer: 325
What was the question?
Question: James decides to buy himself a new barbell. It cost 30% more than his old $250 barbell. How much did it cost?


The total number of apples delivered was 42 × 12 = 504. There are 504 - 4 = 500 apples were left remaining. Finally, there are 500 ÷ 10 = 50 boxes of apples.
The answer: 50
Reverse engineering the question: There are 42 apples in a crate. 12 crates of apples were delivered to a factory. 4 apples were rotten and had to be thrown away. The remaining apples were packed into boxes that could fit 10 apples each. How many boxes of apples were there?


Reasoning and answer: Caleb’s dad caught 2 x 3 = 6 trouts. His dad caught 6 - 2 = 4 more trouts than Caleb.
The answer: 4
What was the question?
Question: Caleb and his dad went fishing at the lake. Caleb caught 2 trouts and his dad caught three times as much as Caleb. How many more trouts did his dad catch compared to Caleb?


Reasoning and answer: Each of Pam's bags contain 40 * 3 = 120 apples. Pam has 120 * 10 = 1200 apples.
The answer: 1200
What was the question?
Question:
Pam has 10 bags of apples. Each of her bags has as many apples as 3 of Gerald's bags. If Gerald's bags have 40 apples each, how many apples does Pam have?