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Puzzle - Answer

A cricketer's average in his first 32 innings was 11 runs per innings.

After a further 8 innings, his average had decreased to 10 runs per innings.

What was his average for the last 8 innings?

 [Ref: ZBYY] © Kevin Stone

Answer: 6 runs per innings.

After the initial 32 innings, 32 x 11 = 352 runs had been made.

After 40 innings the average was now 10, which means a total of 400 runs.

So an extra 48 runs were made in the last 8 innings, an average of 6 runs per innings. QED.

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