Think of a number, divide it by 4, and add 9 to it. If the result is 15, what is the number'?
Q1. Think of a number, divide it by 4, and add 9 to it. If the result is 15, what is the number'?
Answer: 24
Explanation: Let number = n; n/4+9 = 15 → n/4 = 6 → n = 24.