The difference between 31% of a number and 13% of the same number is 576. What is 17% of that number?
Answer & explanation
Correct answer: option 4
The correct answer is Option (4) → 544
The difference between 31% and 13% of the same number is 18% of that number, so the given difference tells us 18% of it.
The given difference is \(31\%-13\%=18\%\) of the number, so 18% of the number \(=576\)
1% of the number \(\displaystyle =\frac{576}{18}=32\) (the number is 3200)
17% of the number \(=17\times32=\) 544