The sum of five numbers is 655. The average of the first two numbers is 78 and the third number is 117. Find the average of the remaining two numbers?

Correct option is B

Given:

Sum of five numbers = 655
Average of the first two numbers = 78
The third number = 117

Formula Used:

Average = Sum of numbers / Number of numbers
Sum of the first two numbers = Average × Number of numbers

Solution:

The sum of the first two numbers is:
Sum of first two numbers = 78 × 2 = 156
The sum of the first three numbers is:
Sum of first three numbers = 156 + 117 = 273
The sum of the remaining two numbers is:
Sum of remaining two numbers = 655 - 273 = 382
The average of the remaining two numbers is:
Average of remaining two numbers = 382 / 2 = 191
Thus, the average of the remaining two numbers is 191.