A batsman scored 45, 60, 55, and 40 runs in four matches. In the 5th match, he wants his average to reach exactly 55 runs. How many runs must he score in the 5th match?
Show answer & explanation
Correct answer: D
Explanation
Given:
Runs in four matches = 45, 60, 55, 40
Required average = 55
Total matches = 5
Formula:
Average = (Total runs) / (Number of matches)
Total required runs = 55 × 5 = 275
Sum of runs in the first four matches = 45 + 60 + 55 + 40 = 200
Required runs in the fifth match = 275 − 200 = 75