A batsman typically scores 40 runs in 20 innings. To raise his average by two, how many runs does he need to score in the twenty-first inning?
Show answer & explanation
Correct answer: B
Explanation
Given:
Average for 20 innings = 40 runs
Increase the average by 2
Total runs in 20 innings = 20 × 40 = 800
New average = 40 + 2 = 42
Total runs in 21 innings = 21 × 42 = 882
Runs to be scored in the 21st innings = 882 − 800 = 82 runs