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VP
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ds - index [#permalink] New post 16 Dec 2005, 02:25
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R=S(100)/P, in the equation, R is the real salary of a person, S is the current salary, and P is a kind of index. Whether the person K's real salary now is more than the real salary in 1967?
1). K's current salary now is 94% more than that of 1967.
2). The index of 1967 is 100 and the index of now is 182.
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 [#permalink] New post 16 Dec 2005, 02:54
ANS = C

R1, S1, P1 are for 1967
R2, S2, P2 are for Now

R1 = 100* S1/P1 and R2 = 100 * S2/P2

Statement 1:

S2 = 1.94 * S1. Substitting this in one of the equation leaves us with P1 and P2. No comparison can be made between R1 and R2. INSUFF

Statement 2:

P1 = 100 and P2 = 182. Substituting these n original equations leaves us with S1 and S2. No comparison can be made between R1 and R2. INSUFF

Both Combined:

R1 = 100S1/100 = S1
R2 = 1.94 * 100 S1/182 = 194S1/182

So real salary now is greater than that of 1967. SUFF.
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 [#permalink] New post 16 Dec 2005, 02:57
C....?

Statement 1 tells us that the difference between current salary and salary of '67 is positive. But does not tell us if the denominatior is positive or negative. So insuff

Satetement 2 tells us that the difference between the indices between current levels and '67 is positive. Does not tell us about the numerator. So insuff.

Taken together we know that both numerator and denominator are positive. Hence real salary today has to be more than real salary of '67
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 [#permalink] New post 16 Dec 2005, 09:06
ps_dahiya wrote:
ANS = C

R1, S1, P1 are for 1967
R2, S2, P2 are for Now

R1 = 100* S1/P1 and R2 = 100 * S2/P2

Statement 1:

S2 = 1.94 * S1. Substitting this in one of the equation leaves us with P1 and P2. No comparison can be made between R1 and R2. INSUFF

Statement 2:

P1 = 100 and P2 = 182. Substituting these n original equations leaves us with S1 and S2. No comparison can be made between R1 and R2. INSUFF

Both Combined:

R1 = 100S1/100 = S1
R2 = 1.94 * 100 S1/182 = 194S1/182

So real salary now is greater than that of 1967. SUFF.


:yes
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  [#permalink] 16 Dec 2005, 09:06
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