Question

The average of three number is 77. The first no. Is twice the second and second no. Is twice the third. Find the first number

Answer 1

Answer:

Step-by-step explanation:

Let, the third number be x.

The second number is twice the third number.....2x.

The first number is twice the second number.....2(2x) = 4x.

Average of all the numbers is 77.

So, 4x + 2x + x / 3 = 77

7x / 3 = 77

7x = 77*3

7x = 231

x = 231/7

x = 33

The first number is 4x = 4*33 = 132