Question

Question) A batsman in his 11th innings score 68 runs and there by increasing his average score by 2. What is his average score after 11th innings.

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Answer 1

Hi there !

Let average score after 11th innings = x
Then average after 10th innings =(x-2)

ATQ
10(x-2)+68= 11x
10x-20+68 = 11x
x=48.

Hence, average score after 11th innings is 48..
hope it helps you...

Answer 2

Let his average score upto 10 innings be x runs.
So the total score after 10 innings = 10x runs.

Score in 11th innings = 68 runs.
Total after 11th innings = 10x+68 runs.
Average after 11 innings = (10x+68)/11
= x+2 (given) .

So 11 × (x+2)= 10x + 68
x = 46
Average score after 11th innings = x+2 = 48 runs.