Answer:
88
Step-by-step explanation:
Nine innings have a mean of 58 runs, and the tenth inning will have x runs. So the overall mean is:
μ = (9×58 + x) / 10
We want the mean to be 61, so:
61 = (9×58 + x) / 10
610 = 522 + x
x = 88
The cricketer must score 88 runs to raise the mean to 61.
