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Numerical Ability
Time and Work
2 persons can finish a job in 8 days. First person alone can finish the work in 24 days. How many days does the second person take to finish the job?
Read Solution (Total 5)
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- 2 persons can do work in 1 day = 1/8
First person can do work in 1 day = 1/24
Second person can do work in 1 day = 1/8-1/24 = 1/12
So Second person can finish work in 12 days - 12 years agoHelpfull: Yes(18) No(0)
- two person completed a job i.e, A+B=1/8 days ,
First person finish a job i.e A=1/24 days
Second person finish a job i.e, (1/24)+B=1/8
=1/8-1/24
=2/24
=1/12
therefore B=12 - 12 years agoHelpfull: Yes(9) No(1)
- A+B's 1 day work=1/8
A's 1 day work=1/24
so, B's 1 day work=1/8-1/24=3-1/24=1/12
then, B completes the full work in 12 days - 12 years agoHelpfull: Yes(3) No(0)
- (a+b)'s 1day"s work is=1/8
a's 1day wrk is =1/24
then b"s 1day work is=1/8-1/24=2/3 - 12 years agoHelpfull: Yes(2) No(5)
- 12 .
why becaus A+B both can do 8 days i.e xy/x+y=8
A can do in 24 days..then x=24
now y=12 days - 2 Months agoHelpfull: Yes(0) No(0)
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