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Director
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Remember to time yourself for < 2 mins [#permalink] New post 19 Sep 2004, 19:20
00:00
A
B
C
D
E

Difficulty:

(N/A)

Question Stats:

0% (00:00) correct 0% (00:00) wrong based on 1 sessions
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Senior Manager
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 [#permalink] New post 20 Sep 2004, 02:28
E. (3 min)

First bus: 3, 13, 23, 33 ...
Second bus: 4,19,34,49 ... You see the paterns ?

can anyone prove this mathematically?
Senior Manager
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 [#permalink] New post 20 Sep 2004, 12:08
Answer should be "E" - solution goes like this:

Bus - A has start time of an hr so completes after 9 HRs of bus B's starting.
A has following pattern in term of B's timing - 9,19,29,39... Hrs.
whereas Bus B has following pattern: 15,30,45,60...Hrs

Bus B has all hrs as multiple of 15 that is equal to 3*5, which can never have multiple/LCm in terms of figure ending at 9 (viz. 9,19,29 and so on..)

:btw Whats the OA ?

Dharmin
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Perseverance, Hard Work and self confidence

  [#permalink] 20 Sep 2004, 12:08
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