Section: Math Section 1

11) If 6% of x is 7.5, then 36% of x equals

1. 36
2. 42
3. 45
4. 48
5. 54

In this question, if you think about the relationship between the information you’re given and the information you have to find, it becomes very easy. You’re given 6% of a number and you have to find 36% of that same number. 6% of x is just a certain fraction, to be exact, ⁶/₁₀₀ times x; and 36% of x is just ³⁶/₁₀₀ times x. That means that 36% of x is 6 times as great as 6% of x. So if you’re given that 6% of x is 7.5, then 36% of x must be 6 times 7.5, or 45.