Of the 3 numbers whose average is 22, the first is 3/8th the sum of other 2. What is the first number?
Show answer & explanation
Correct answer: D
Explanation
The correct answer is option 4. i.e. 18
A + B + C = 66 .... (i)
Given
.... (ii)
From eqn. (i) & (ii)
11A = 66 × 3
A = 6 × 3 = 18