Correct Answer - Option 4 : 93
Given:
Score in tenth innings = 120 run
Increment in average score = 3 run
Formula used:
Average = Sum of all observation/Number of observation
Calculation:
Let average of 9 innings be x runs
⇒ Sum of score after ten innings = 9x + 120
According to the question,
⇒ (9x + 120)/10 = x + 3
⇒ 9x + 120 = 10x + 30
⇒ x = 90 runs
⇒ Average after tenth innings = 90 + 3 = 93 run
∴ The average of Rohit Sharma after tenth innings is 93.