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?

A 3 hrs 15 min
B 3 hrs 45 min
C 4 hrs 15 min
D 4 hrs 1

Correct Answer: 3 hrs 45 min

Time taken by one tap to fill half of the tank = 3 hrs.

 

  Part filled by the four taps in 1 hour =4*1/6 =2/3

 

Remaining part =1-12=12

 

23:12::1:x

 

=> x = 12*1*32=34

 

So, total time taken = 3 hrs. 45 mins.

Bissoy MCQ
#Pipes and Cistern #Quantitative Aptitude #Arithmetic Ability

Related Questions

A water tank has two taps (Tap-1 and Tap-2) . Tap -1 can fill a tank in 8 hours and Tap-2 can empty the tank in 16 hours . How long will they take to fill the tank if both taps are opened simultaneously but Tap-2 is closed after 8 hours ?
A 10
B 12
C 14
D 16
A water tank has two taps ( Tap-1 and Tap-2) : Tap-1 can fill a tank in 8 hours and Tap-2 can empty the tank in 16 hours . How long will they take to fill the tank if both taps are opened simultaneously but Tap -2 is closed after 8 hours?
A 10
B 12
C 14
D 16
A water tank has two taps (Tap1 -Tap2) . Tap -1 can fill a tank in 8 hours and Tap- 2 can empty the tank in 16 hours. How long will they take to fill the tank if both taps are opened simultaneously but tap-2 is closed after 8 hours?
A 10
B 12
C 14
D 16
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?
A 4 hrs 15 min
B 3 hrs 45 min
C 3 hrs 24 min
D 4 hrs 51 min
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?
A 3 hrs 15 min
B 3 hrs 45 min
C 4 hrs 15 min
D None of these
A tap 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?
A 3 hours
B 3.25 hours
C 3.5 hours
D 4 hours
A tap can fill a tank in 6 hours. After half the tank is filled, there more similar taps are opened. What is the total time taken to fill the tank completely ?
A 3 hrs 15 min
B 3 hrs 45 min
C 4 hrs
D 4 hrs 15 min
A tap can fill a tank in 6hours.After half hour the tank filled ,three more similar taps are opened.What is the total time taken to fill the tank completely?
A 3hrs 15min
B 3hrs 45 min
C 4hrs
D 4hrs 15min
A tap can fill a tank in 6 hours . After half the tank is filled another simila tap is opened. What is the total time taken to fill the tank completely?
A 3 h 30 m
B 3 h 45 m
C 4 h30 m
D 4 h
Two taps X and Y can fill a tank in 15 hours and 20 hours respectively. If the two taps are opened at 2 p.m., then at what time (in p.m.) should the tap X be closed to completely fill the tank at exactly 2 a.m.?
A 8
B 7
C 9
D 10

Next steps