CAT Exam Numerical Ability Time and Work

4/5 part of a tank fills in a minute, then how much time will it take for the rest of the tank to be filled?

Read Solution (Total 4)

sorry it ll take 1 min 15 secs to fill full tank

... Already 4/5th filled ...
Remaining part = 1- 4/5 = 1/5

4/5 part - 1min
1/5 --x

1/5 * 5/4 = 1/4 mins ==> 60* 1/4 = 15 sec

Ans : 15 sec
10 years agoHelpfull: Yes(15) No(0)

15 seconds

Remaining part to be filled = 1-4/5 =1/5
Let it be filled in x min
4/5 ---- 1 min
1/5 ---- x min
x = 1/5*5/4
=1/4 min = 1/4*60 = 15 seconds
10 years agoHelpfull: Yes(3) No(0)
4/5 --- 1
1 -----x

5/4 * 1 = 5/4 mins ==> 1 1/4 ===> 1 mins 15 sec

Ans : 1 min 15 sec
10 years agoHelpfull: Yes(0) No(0)
The remaining part is 1 - 4/5 =1/5
4/5 ----------- 1min
1/5-------------?
1/4 min i,.e 15 secs...
10 years agoHelpfull: Yes(0) No(0)

CAT Other Question

A pipe can fill a tank in 15 min and the other can empty it in 30 min. if both the pipes are opened at the same time and after 15 min if the second pipe is closed, then upto what level will the tank be filled? 3/5 part of a kerosene tin is filled. if 6 bottles are taken out of it and 3 bottles are filled again, then half the tin is full. what is the capacity of the tin?