Question

12 taps can fill 5 by 4 of the part of tank in 3 hours how many taps can fill 5 by 4 part of the tank in 4 hours

Answer 1

In 3 hours = 12 taps
In 1 hour = 12 × 3 = 36 taps
In 4 hours = 36/4 = 9 taps