The sum of five numbers is 655. The average of the first two numbers is 78 and the third number is 103. Find the average of the remaining two numbers?

Question

Question

This question was previously asked in

RPF Constable 2024 Official Paper (Held On 03 Mar, 2025 Shift 2)

Answer 1

Given:

Sum of five numbers = 655

Average of the first two numbers = 78

Third number = 103

Formula Used:

Average = Sum of numbers / Total numbers

Calculation:

Sum of the first two numbers = Average × Total numbers

Sum of the first two numbers = 78 × 2

⇒ Sum of the first two numbers = 156

Sum of the remaining two numbers = Total sum - (Sum of the first two numbers + Third number)

Sum of the remaining two numbers = 655 - (156 + 103)

⇒ Sum of the remaining two numbers = 655 - 259

⇒ Sum of the remaining two numbers = 396

Average of the remaining two numbers = Sum of the remaining two numbers / 2

Average of the remaining two numbers = 396 / 2

⇒ Average of the remaining two numbers = 198

The average of the remaining two numbers is 198.