A cricketer has a certain average for 9 innings. In the 10th innings he scores 100 runs, thus increasing his average by 8 runs. What is new average?
Created: 6 years ago |
Updated: 1 year ago
best des
If original average is A then new average is A + 8.
ATQ, 9 x A + 100 = 10 x (A + 8)
or, 9A + 100 = 10A + 80
or, 10A - 9A = 100 - 80
or, A = 20
So, new average = A + 8 = 20 + 8 = 28 runs
Md Azizur Rahman
Founder of Satt
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