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A company s profit was $600,000 in 1990. What was its profit

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A company s profit was $600,000 in 1990. What was its profit [#permalink] New post 28 May 2007, 05:27
A company´s profit was $600,000 in 1990. What was its profit in 1991?

(1) There was a 20 percent increase in income in 1991.
(2) There was a 25 percent increase in costs in 1991.
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Re: another good one [#permalink] New post 28 May 2007, 05:36
andrehaui wrote:
A company´s profit was $600,000 in 1990. What was its profit in 1991?

(1) There was a 20 percent increase in income in 1991.
(2) There was a 25 percent increase in costs in 1991.


For (E)

P(90) = I(90) - C(90) = 600,000
P(91) = I(91) - C(91) = ?

(1) I(91) = 1,2*I(90)
Do not know anything about C(91) => insuff

(2) C(91) = 1,25*C(90)
Do not know anything about I(91) => insuff

(1) & (2)

P(90) = I(90) - C(90) = 600,000
P(91) = I(91) - C(91) = 1,2*I(90) - 1,25*C(90)
=> not enough to solve the above equation
=> insuff

Hence, (E)
Re: another good one   [#permalink] 28 May 2007, 05:36
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A company s profit was $600,000 in 1990. What was its profit

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