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# A can complete a piece of work in 4 days. B takes double the

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CEO
Joined: 15 Aug 2003
Posts: 3469
Followers: 61

Kudos [?]: 703 [0], given: 781

A can complete a piece of work in 4 days. B takes double the [#permalink]  14 Sep 2003, 03:37
00:00

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(N/A)

Question Stats:

0% (00:00) correct 0% (00:00) wrong based on 0 sessions
A can complete a piece of work in 4 days. B takes double the time
taken by A. C takes double that of B, and D takes double that of C to
complete the same task. They are paired in groups of two each. One pair
takes two-thirds the time needed by the second pair to complete the work.
Which is the first pair?

a) A, B
b) A, C
c) B, C
d) A, D
Senior Manager
Joined: 21 Aug 2003
Posts: 258
Location: Bangalore
Followers: 1

Kudos [?]: 4 [0], given: 0

In questions of the type: Which of the following is the answer and u have to trial and check. Always better to start in the middle or at the bottom (so that even u are off u know to move up or down, eleminating two choices)
- Vicks
ps: formula used: 1/r + 1/m = 1/n n = together rate
r,m - individual rates.
SVP
Joined: 30 Oct 2003
Posts: 1797
Location: NewJersey USA
Followers: 5

Kudos [?]: 41 [0], given: 0

(B,C) takes 2/3 time taken by (A,D)
Manager
Joined: 26 Dec 2003
Posts: 227
Location: India
Followers: 1

Kudos [?]: 2 [0], given: 0

d) A, D hmmmm little more than a min by trying each and every choice
Senior Manager
Joined: 23 Aug 2003
Posts: 462
Location: In the middle of nowhere
Followers: 1

Kudos [?]: 12 [0], given: 0

C) B,C

Formual used the same as aforementioned by Vicks.

Vivek.
_________________

"Start By Doing What Is Necessary ,Then What Is Possible & Suddenly You Will Realise That You Are Doing The Impossible"

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