CAT
Exam
Numerical Ability
Time and Work
Two taps a and b can fill a tank in 8min. if a alone can fill it in 24 min. in how many minutes does tap b fill it?
Read Solution (Total 3)
-
- 12 min
Let b alone take x min
==>
1/x +1/24 = 1/8
1/x = 1/8 - 1/24
=(3-1)/24
=1/12
===> b alone takes 12 min - 10 years agoHelpfull: Yes(1) No(0)
- a+b=1/8
a=1/24
b=1/8 - 1/24=1/12
so,b takes 12 mins.. - 9 years agoHelpfull: Yes(1) No(0)
- given a + b =1/8(i.,e work for 1min)
and similarly a =1/24(i.,e work for 1min)
so b=1/8 - 1/24 =1/12
i.,e time taken by b to complete the work is 12mins...
- 9 years agoHelpfull: Yes(1) No(0)
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