The sum of three numbers is 132. If the ratio of the first to the second is 2:5 and the ratio of the second to the third is 5:4, then the first number is:
Show answer & explanation
Correct answer: B
Explanation
Given:
Sum of the three numbers = 132
First : Second = 2 : 5
Second : Third = 5 : 4
First : Second : Third = 2 : 5 : 4
Total parts = 2 + 5 + 4 = 11
One part = 132 / 11 = 12
First number = 2 × 12 = 24