A batsman makes a score of 87 runs in the 17th innings and

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A batsman makes a score of 87 runs in the 17th innings and thus increased his average by 3. Find his average after 17th innings.

1. 39
2. 87
3. 90
4. 84

Correct Option: A

Here , A batsman makes a scored in the 17th innings = 87 runs
and increased by his average = 3
Average runs in 16 innings = 87 – 17 × 3 = 87 – 51 = 36
∴ Required average = 36 + 3 = 39 runs