Pipes and Cisterns Practice Test 2 with solutions

Work done by ‘L’ alone is equal to the work done by both M and N together.
So, L = M + N
⇒ L - M + N
Work done by N in one minute =

1

48

So, L - M =

1

48

... (1)
Work done by L and M in one minute =

5

48

......(2)
Adding (1) and (2) we get,
L =

1

16

So, L alone can fill the tank in 16 minutes