a batsman makes a score of 87 runs in the 17 th inning and thus increases his average by 3 . find his average after 17 th inning .
n0 = 87.0
n1 = 17.0
n2 = 3.0
n3 = 17.0
t0 = n1 * n2
t1 = n0 - t0
answer = n2 + t1
print(answer)