A boy was asked to multiply a number by 25. He instead multiplied the number by 52 and got the answer 324 more than the correct answer. What was the number?
Answer: A
Let the number be x.
Correct multiplication = 25x.
Incorrect multiplication = 52x.
Given, 52x - 25x = 324.
27x = 324.
x = \(324 \div 27 = 12\).