Is the number of seconds required to travel d1 feet at r1 : DS Archive
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# Is the number of seconds required to travel d1 feet at r1

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Is the number of seconds required to travel d1 feet at r1 [#permalink]

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30 Apr 2006, 07:10
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Is the number of seconds required to travel d1 feet at r1 feet per second greater than the number of seconds required to travel d2 feet at r2 feet per second?
(1) d1 is 30 greater than d2.
(2) r1 is 30 greater than r2.
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30 Apr 2006, 21:12
E it shud be

A:-120/10 > 90/50
120/60 < 90/10

cant say

B 120/60 > 30/30
60/60 < 120/30

cant say

C

d+30/r+30 > d/r , if d/r < 1
d+30/r+30 < d/r , if d/r >1
hence cant say
30 Apr 2006, 21:12
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