Three numbers are in the ratio 2:3:5, and their sum is 100. Find the difference between the largest and smallest numbers.
Show answer & explanation
Correct answer: A
Explanation
Given:
Ratio = 2 : 3 : 5
Sum = 100
According to the formula:
The numbers = 2x, 3x, 5x
2x + 3x + 5x = 100
10x = 100 ⇒ x = 10
The numbers = 20, 30, 50
Difference = 50 − 20 = 30