Question

The total number of runs given by a bowler in a
certain number of innings was 900. In the next
match, he took 4 wickets and gave 256 runs. As a
result, his average (runs conceded/number of
wickets taken) went up by 4. How many wickets did
the bowler tota by yourselflly take before the last match?
(A) 30 (B) 60 (C) 45
(D) 50​

Answer 1

Answer: [a]

Explanation:Step-by-step explanation:

Current Average (A) = 900 / x , where x is the number of wickets taken till date.

After the last match, Average = A + 4 = (900 + 256)/(x + 4)

So A + 4 = 1156/(x+4)

or 4 + 900/x = 1156/(x+4)

or 1 + 225/x = 289/(x+4)

Rearranging:

x^2 - 60x + 900 = 0

(x - 30)^2 = 0

So x = 30

Answer 2

Answer:

answer is = 30

hope it will help you