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by ketkoag » Tue Mar 31, 2009 10:23 am
At a fruit stand yesterday, the price of each apple was $0.10 more than the price of each orange.
What was the total revenue from the sale of oranges at the fruit stand yesterday?
(1) The number of oranges sold at the fruit stand
yesterday was 5 more than the number of
apples.
(2) The total revenue from the sale of apples
at the fruit stand yesterday was $15.00

How the OA is : C
My answer: E
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by mike22629 » Tue Mar 31, 2009 11:27 am
This question can be solved however, it shouldnt be. You simply need to realize that it is showing the relationship of Price of Apples to Price of Oranges and asking you the revenue in the question stem.

In order to find revenue you need to find the Price and Number of oranges sold.

A.) Insufficient- it gives you the relationship of the number of apples sold and the number of oranges sold, but nothing about prices.

B.) Insufficient - it gives you the revenue of Apples (price of apple times number of apples), but nothing pertaining to oranges.

Both together are sufficient. You have price and quantity relationship and actual apple revenue which is sufficient to solve problem.

IMO C
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by ketkoag » Tue Mar 31, 2009 11:47 am
mike could u please solve it for me as i am not getting the answer yet.
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by scoobydooby » Wed Apr 01, 2009 3:46 am
statements 1 and 2 standalone are not sufficient.

combining,

total revenue TR= na*pa+no*po.........1

given
no=na+5.......................2
pa=po+0.10...............3

also na*pa=$15 or pa=15/na

putting in 3 we get 15/na=po+0.10
=>po=15/na-0.10.............4

from 1 and 4 we have TR= 15+(na+5)*(15/na-0.10) expressing in one variable

na is unknown. so we cant find the total revenue.

hence E
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