Question

A tap can fill a tank in 6 hours. after half the tank is filled,three more similar taps are opened. what is the total time takento fill the tank completely?a tap can fill a tank in 6 hours.after half the tank is filled, three more similar taps are opened.what is the total time taken to fill the tank completely

Answer 1

Hey Mate ,  Here is your answer :-  Let total capacity of tank = 6 units  ∴ Efficiency of A/hr.=6 / 6= 1/ unit  Half tank capacity=6 / 2 =3units  It will be filled in = 3 hrs   According to question,   3 more taps of capacity (1 unit/ hr) are opened with first tap   Total capacity of 4 taps = 4 units/hrs   They will fill the tank in   =Remaining capacity / efficiency=3units / 4units/h= 3/4hours  Total time =3 3/4hrs  = 3 hr. 45 min Hope , this will help you.