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Question
A batsman has a mean score of 73 in 19 innings. Find how many runs are to be scored by him in 20th inning so that his mean score becomes 75?
Sum
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Solution
Given: A batsman has a mean score of 73 in 19 innings and wants his mean to become 75 after 20 innings.
Step-wise calculation:
1. Total runs after 19 innings
= 73 × 19
= 1387
2. Required total runs after 20 innings
= 75 × 20
= 1500
3. Runs needed in 20th inning
= 1500 – 1387
= 113
He must score 113 runs in the 20th inning.
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