Discussion

A batsman scores 35, 45, 38, 42, and x runs in five innings. If his average score for the five innings is 40, what is the value of x?

Answer: B

The mean (average) score is the total score divided by the number of innings.

Total score = 35 + 45 + 38 + 42 + x = 160 + x.

Average = \(\frac{160 + x}{5} = 40\).

160 + x = 40 × 5 = 200.

x = 200 - 160 = 40.

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