Vishwanath
Wednesday, February 20, 2013
16. One tap can fill a cistern in 2 hours and another tap can empty the cistern in 3 hours. How long will they take to fill the cistern if both the taps are opened ?
A.5 his B.7 hrs
C.6 his D.8 his
Answer: 6 hrs
Explanation: Net part filled in 1 hour = (1/2) - (1/3) = 1/6
Cistern will be full in 6 hours.
Title : Pipes And Cisterns Q16
Description : 16. One tap can fill a cistern in 2 hours and another tap can empty the cistern in 3 hours. How long will they take to fill the cistern if b...
Rating : 5
