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Which of the following fractios has the greatest value? (a).

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Director
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Which of the following fractios has the greatest value? (a). [#permalink] New post 15 Jul 2007, 07:46
Which of the following fractios has the greatest value?



(a). 6/2^2 *5 ^2
(b). 1 / 2 ^ 3 * 5 ^ 2
(c). 28 / 2 ^ 2 * 5 ^ 3
(d). 62 / 2 ^ 3 * 5 ^ 3
(e). 122 / 2 ^ 4 * 5 ^ 3

Please provide the shortest way to solve this one. Thanks
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Director
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 [#permalink] New post 15 Jul 2007, 07:48
sorry about the typo :


Which of the following fractions has the greatest value?



(a). 6 / 2^2 *5 ^2
(b). 1 / 2 ^ 3 * 5 ^ 2
(c). 28 / 2 ^ 2 * 5 ^ 3
(d). 62 / 2 ^ 3 * 5 ^ 3
(e). 122 / 2 ^ 4 * 5 ^ 3

Please provide the shortest way to solve this one. Thanks
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 [#permalink] New post 15 Jul 2007, 11:06
D
take one and start comparing its value with otherone and discard the one that is small and then compare the bigger one with next choice.....and continue till you get the last one.......
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 [#permalink] New post 15 Jul 2007, 12:11
IMO, Shortest is making denominators same (2^3*5^3) and compare numerators:

A. 60
B.5
C.56
D.62
E.61
  [#permalink] 15 Jul 2007, 12:11
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Which of the following fractios has the greatest value? (a).

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