Four numbers are in the ratio of 2 : 3 : 4 : 5, and their sum is 56. Find the sum of the first and third numbers.
Show answer & explanation
Correct answer: B
Explanation
The correct answer is Option 2 i.e. 24
Let the numbers are 2x, 3x, 4x, and 5x.
Sum of the numbers: 2x + 3x + 4x + 5x = 56
⇒ 14x = 56
⇒ x = 56 / 14
⇒ x = 4
The first number = 2x = 2 × 4 = 8
The third number = 4x = 4 × 4 = 16
Sum of the first and third numbers = 8 + 16 = 24