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Company sales

by vk_vinayak » Mon Aug 27, 2012 12:46 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.
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by Anurag@Gurome » Mon Aug 27, 2012 4:25 am
sales of company A in 2005 = SA5
sales of company A in 2006 = SA6
sales of company B in 2005 = SB5
sales of company B in 2006 = SB6
percent of sales of company A increase = (SA6 - SA5) * 100 / SA5

From 1, we can know SA5 = 0.25 * SB5
as we don`t know value of SA6 and SB5. we can`t answer using this alone.

From 2, we can know SA6 = 0.25 * SB6
as we don`t know value of SB6, we can`t answer using this alone.

From 1 and 2 also we can`t get values of SA6 in terms of SA5. AS we don`t know SB6 in terms of SB5 or their values to get the values.

Hence, it is E
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by SmartAssJun » Mon Aug 27, 2012 4:47 pm
vk_vinayak wrote: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.
Don't even need to list the numbers for company A since we don't have the sales of company B
The answer should be E.
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