# The average of three numbers is 77. The first number is twice the second and the second number is twice the third. Find the first number ?

The average of three numbers is 77. The first number is twice the second and the second number is twice the third. Find the first number ?

A. 33

B. 66

C. 77

D. 132

**Answer : **D. 132

## Explanation :

Sum of the numbers = 3 × 77 = 231

Let third number be x

Then, second number = 2x

First number = 4x

x + 2x + 4x = 231

⇒x = 33

First number = 4x

x = 132