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Company R's annual profit has increased by a constant amount

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Director
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Company R's annual profit has increased by a constant amount [#permalink] New post 12 Jan 2005, 08:38
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Company R's annual profit has increased by a constant amount each calendar year since 1985. What was Company R's annual profit in 1991?

(1) In 1985 Company R's annual profit was $212,000; in 1989 Company R's annual profit was $242,000.
(2) Company R's annual profit has increased by $7,500 each year since 1985.
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 [#permalink] New post 12 Jan 2005, 08:49
Is it A?

If the term " constant amount" implies that the profit increases every year in an A.P. , then it is A.

What is the OA
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 [#permalink] New post 12 Jan 2005, 14:00
swath20 wrote:
Is it A?

If the term " constant amount" implies that the profit increases every year in an A.P. , then it is A.

What is the OA

swath20 can you elaborate on this one.. the way you would play with numbers in this question..
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 [#permalink] New post 13 Jan 2005, 17:39
swath20 wrote:
Is it A?

If the term " constant amount" implies that the profit increases every year in an A.P. , then it is A.

What is the OA


Can you let us know the meaning of "in an A.P."? Thx!
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DS 2 [#permalink] New post 13 Jan 2005, 17:49
A is the answer

Statement 1
Let x be the annual profit increased, a constant amount
212000 + 4x = 242000
=> x = 7500
For year 1991 we can compute the answer based on x = 7500 and knowing the profit for the previous years

Statement 2 is useless
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 [#permalink] New post 13 Jan 2005, 19:45
jinino wrote:
Can you let us know the meaning of "in an A.P."? Thx!


AP is Arithmetic Progression.
  [#permalink] 13 Jan 2005, 19:45
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