The sum of five numbers is 655. The average of the first two numbers is 78 and the third number is 129. Find the average of the remaining two numbers?

Correct option is D

Given:

Sum of five numbers = 655

Average of first two numbers = 78

Third number = 129

Formula Used:

Sum = Average × Number of terms

Solution:

Sum of first two numbers = 78 × 2 = 156

Third number = 129

Sum of first three numbers = 156 + 129 = 285

Remaining sum = 655 - 285 = 370

Average of remaining two = $$\frac{370} 2$$ = 185