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DS-percentage change

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DS-percentage change

by sl750 » Sun Jul 31, 2011 12:52 am
From 2005 to 2006, by what percent did the sales of Company A increase?

(1) In 2005, the sales for Company A were 1/4 of the sales of Company B.

(2) In 2006, the sales for Company A were 3/4 of the sales of Company B.

I thought I had the right answer to this problem, but I was wrong. Can someone please explain

I shall post the answer after a few replies

Thanks
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by clock60 » Sun Jul 31, 2011 1:54 am
hi
seems like E
(1) if in 2005 the sales in B were X, sales in A were (1/4)*x insuff
(2) if in 2006 the sales in B were x1. sales in A were (3/4)*x1
eveb together it is impossible to know
(3/4)*x1-(1/4)*x-? at least we need to know the ratio between x and x1
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by sl750 » Sun Jul 31, 2011 2:35 am
the answer is E

For some reason I just assumed the sales to be identical in both periods.

anyway, thanks for your response clock60
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