The sum of five numbers is 655. The average of the first two numbers is 85 and the third number is 125. Find the average of the two numbers?

Arithmetic Mcqs Average Mcqs Basic Maths Mcqs 20/05/2021

A. 180
B. 170
C. 190
D. 175

Explanation:

Let the five numbers be P, Q, R, S and T.

=> P + Q + R + S + T = 655.
(P + Q)/2 = 85 and R = 125
P + Q = 170 and R = 125
P + Q + R = 295
S + T = 655 – (P + Q + R) = 360
Average of the last two numbers = (S + T)/2 = 180

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