The average number of sit ups that Brendon, ken, shah and gopal did was 38. The average number of sit ups that Brendon, shah and gopal did was 37. Find the number of sit ups that ken did.

Answer 1

Let's denote the number of sit ups that Ken did as K.

Given:
(Brendon + Ken + Shah + Gopal) / 4 = 38
(Brendon + Shah + Gopal) / 3 = 37

From the first equation:
Brendon + Ken + Shah + Gopal = 152 (1)

From the second equation:
Brendon + Shah + Gopal = 111 (2)

Subtracting equation (2) from equation (1):
Ken = 152 - 111
Ken = 41

Therefore, Ken did 41 sit ups.