A cricketer has a certain average for 9 innings, In the tenth inning he scores 100 runs there by increasing his average by 8 runs. His new average is
Answer & explanation
Correct answer: option 1
Let the old average of the cricketer be x.
According to the question:
\(\frac{\text{9x + 100} }{10 }\) = x + 8
9x + 100 = 10x + 80
x = 20
The old average of the cricketer comes out to be 20. Thus, the new average = x + 8 = 20 + 8 = 28 runs.