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TICK TOCK Q

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Senior Manager
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TICK TOCK Q [#permalink] New post 06 Jan 2004, 19:03
Any idea :shock: Pls include reasoning along with all answer posts.

One pendulam ticks 57 times in 58 seconds and another 608 times in 609 seconds. If they start simultaneously, find the time after which they will tick together.

a. 211/19secs
b. 1217/19secs
c. 1218/19secs
d. 1018/19secs
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Pls include reasoning along with all answer posts.
****GMAT Loco****
Este examen me conduce jodiendo loco

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 [#permalink] New post 06 Jan 2004, 19:14
yes.
Please include your reasoning
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Pls include reasoning along with all answer posts.
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 [#permalink] New post 06 Jan 2004, 19:22
oh sorry not to include the reasoning

the 1st pendulam takes 58/57 sec to tick one time and the 2nd one 609/608 sec. so they both would tick at

lcm of (58/57, 609/608) = lcm of ( 58, 609) / hcf of (57, 608)= 1218/19

hope this helps
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 [#permalink] New post 06 Jan 2004, 19:26
It does. Many thanks!
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Pls include reasoning along with all answer posts.
****GMAT Loco****
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  [#permalink] 06 Jan 2004, 19:26
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