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Number problem.

by pardeep_10sharma » Sun Jun 27, 2010 1:27 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

Ans :- C. I was getting E. Plz help.
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by albatross86 » Sun Jun 27, 2010 2:48 am
A = O + 0.1

What is the total revenue from the sale of oranges?

We need number of oranges sold and cost per orange.


1. No. of oranges (say y ) is 5 more than number of apples (say x) => y = x + 5
We can't get a clear value of y nor can we get the cost per orange.
INSUFFICIENT

2. This means A*x = 15
=> (O + 0.1)*x = 15. We cannot find O or y.
INSUFFICIENT


Both 1. and 2.

We have (O + 0.1)*x = 15, and x = y - 5
Substituting (O + 0.1) *(y -5) = 15
=> Oy -5O + 0.1y - 0.5 = 15
=> Oy -5O + 0.1y = 15.5

We cannot isolate Oy or find individual values for O and y. INSUFFICIENT

Pick E. I think OA C is wrong. Waiting for further explanations!
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by selango » Sun Jun 27, 2010 3:46 am
IMO E
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by taneja.niks » Fri Jul 02, 2010 2:14 am
the answer is correct as C.

please see the explanation below.

let number of oranges be n
and price of each orange = x

total revenue from sale of oranges = nx

let number of apples be m
and price of each apple = x+0.10x

total revenue from apples = m(1.1x) = 1.1mx

First statement is insufficient.

second is insufficient as well

combine the two statements

1)-> n=5m (relation from statement 1)
2)-> 15 = 1.1mx

substitute value of m from statement 1 to 2
150/11 = (n/5)x

750/11 =nx
nx is the required thing.
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by albatross86 » Fri Jul 02, 2010 2:30 am
(1) The number of oranges sold at the fruit stand yesterday was 5 more than the number of apples.
This would mean n= m + 5; not n = 5m

So if you substitute this in 15 = 1.1mx = 1.1*(n-5)*x = 1.1nx - 5.5x

You can see that it would be insufficient.

If it had said "5 times more" then your interpretation would be correct, but "5 more" is just "m + 5" imo.
~Abhay

Believe those who are seeking the truth. Doubt those who find it. -- Andre Gide
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by selango » Fri Jul 02, 2010 2:57 am
yes..5 more than is different from 5 times more than.

According to stmt1,the equation is

O=A+5

taneja.niks,

you need to careful in this sort of word problems.
--Anand--
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by blaster » Fri Jul 02, 2010 3:15 am
i also get E as am answer
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by taneja.niks » Fri Jul 02, 2010 4:13 am
yes guys u r right I read the thing wrong.
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by pardeep_10sharma » Fri Jul 02, 2010 10:00 am
Guys we should appreciate Taneja Niks that atleast she has tried . She gave a beautiful explanation but she missed one chance i.e. instead of n= 5+m she had taken n=5m. So is fine we all are humans and such things happen.

Thanks Taneja. I am still trying to make answer C bcz it is correct. Hope u guys too are making more attemppts. Keep on trying guys.

Thanks all of you for atleast taking my problem.
selango wrote:yes..5 more than is different from 5 times more than.

According to stmt1,the equation is

O=A+5

taneja.niks,

you need to careful in this sort of word problems.
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by albatross86 » Fri Jul 02, 2010 10:07 am
pardeep_10sharma wrote:Guys we should appreciate Taneja Niks that atleast she has tried . She gave a beautiful explanation but she missed one chance i.e. instead of n= 5+m she had taken n=5m. So is fine we all are humans and such things happen.

Thanks Taneja. I am still trying to make answer C bcz it is correct. Hope u guys too are making more attemppts. Keep on trying guys.

Thanks all of you for atleast taking my problem.
selango wrote:yes..5 more than is different from 5 times more than.

According to stmt1,the equation is

O=A+5

taneja.niks,

you need to careful in this sort of word problems.
Pardeep,

I agree, I think the explanation was great, and in fact it leads me to believe that perhaps the question intended to say 5 times more. Perhaps there was a typo in the source.

For the question as it stands, I don't see how you could come up with a unique value. A couple of other forums I trolled seem to have arrived at E as well, and have concluded that there may be a mistake in the OA or question.

If there's no OE, I wouldn't bother with this - probably an unreliable source? Let us know if you find out.

Thanks for sharing!
~Abhay

Believe those who are seeking the truth. Doubt those who find it. -- Andre Gide
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