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Question

The average runs scored by a batsman in a certain number of innins is 54. After he plays one more innings, in which he scored 145 runs, his average runs in all the innings played becomes a prime number less than 72. Find the total number of innings he played?

A
7
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B
12
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C
13
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D
indeterminable
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Solution

The correct option is D indeterminable
Option D is the correct answer. Check the video for the approach.

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