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by ketkoag » Sat Mar 28, 2009 2:51 am
If R =P/Q , is R = P ?
(1) P > 50
(2) 0 < Q = 20

OA: E
Please explain how??
Explain what does the statement 2 mean?
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Source: — Data Sufficiency |
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by DanaJ » Sat Mar 28, 2009 4:30 am
R = P/Q gives us a hint about how to find out if P = R. R will be equal to P only when Q is 1, so this is what we need to find out.

1. P > 50 tells us nothing about Q, so 1 is insufficient.

2. I believe that you meant "0 < Q < 20" - in this case, 1 is in the interval, but we can't say if Q is 1 or any other number between 0 and 20. Again, 2 will be insufficient.
However, if you did mean that Q = 20, then 2 will be sufficient, since it's enough to prove that R is not equal to P.
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by ketkoag » Sat Mar 28, 2009 5:59 am
in the actual source, statement 2 is correctly mentioned.
i.e 0<Q=20. so i also considered the 2nd statement as true and marked the answer as B. Any ways i'm sure the actual test will take care of such ambiguity.....
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