CAT 2008(DI, MATHS,ENGLISH and GD/PI)

this group is for the people who want to go to IIMs in year 2009 for PGP program. This group will cover all the aspects of admission process like CAT and GD/PI queries too.

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Aadil Mohhamed Tak shared a question:

The amount of work done by a man on n^th day from starting the work is n times that done on the first day. If 8 men start the work, it can be completed in 10 days.

If only one man starts the work, then how many days will be required to complete the work?
(A) 20
(B) 25
(C) 30
(D) 35
(E) 36

Feb 13, 2014 6:35 PM

Aadil Mohhamed Tak shared a question:

A, B and C can do a piece of work in 30 days, 40 days and 60 days, respectively. A works for 5 days alone and then B joins him. After 8 days, C also joins them. A leaves the work 2 days after C joins, and after another 2 days, B also leaves the work. C completes the remaining work alone.

How many days in total are taken to complete the work from the beginning?
(A) 16 days
(B) 8 days
(C) 25 days
(D) 20 days
(E) 12 days

Feb 08, 2014 2:14 PM

Aadil Mohhamed Tak shared a question:

B is twice as efficient as A. C is 50% more efficient than B. B and C together can complete a piece of work in 10 days. How much time will A and B take to complete the work, if they work on alternate days starting with A?
(A) 28

\frac{1}{2}

days
(B) 29

\frac{1}{2}

days
(C) 30

\frac{1}{3}

days
(D) 33

\frac{1}{2}

days
(E) 32

\frac{1}{2}

days

Feb 06, 2014 9:56 PM

Aadil Mohhamed Tak

B is twice as efficient as A and C is 50% more efficient than B. B and C together can complete a work in 10 days. How much time will be taken by A and B to complete the work, if they work on alternate days starting with A?