A cricket player after playing 10 tests scored 100 runs in the 11th test. As a r

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Question

A cricket player after playing 10 tests scored 100 runs in the 11th test. As a result, the average of his runs is increased by 5. The present average of runs is

Options:

A . 40

B . 55

C . 45

D . 50

Answer: Option D
Answer: (d)If the average in 10 tests be x, then, x × 10 + 100 = (x + 5) × 11 ⇒ 11x – 10x = 100 – 55 ⇒ x = 45 ∴ Required average = 50

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