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Math vs English

This topic has 1 expert reply and 2 member replies
jng1103 Newbie | Next Rank: 10 Posts Default Avatar
Joined
21 Jan 2007
Posted:
2 messages

Math vs English

Post Tue Feb 06, 2007 12:56 am
While working on Math questions from OG, I've been very frustrated on several occassions that the questions were written in a very confusing way to understand, especially for those non-English students like myself.

Here is one good example. (Perhpas I am too dumb to understand)

A shipment of 1500 heads of cabbage, each of which was approximately the same size, was purchased for $600. The day the shipment arrived, 2/3 of the heads were sold, each at 25% above the cost per head. The following day, the rest were sold at a price per head equal to 10% less than the price each head sold for on the day before. What was the gross profit on this shipment?
A. $100
B. $115
C. $125
D. $130
E. $135

This question isnt tough at all. However, the statement "...10% less ... sold for on the day before" is very confusing. If you chose 10% less than 25%, the answer would be $130(D). If you chose 10% less than original price (=90%), the answer would be $125 (C).

Based on my understanding (sorry for my poor English), the statement clearly stated that "10% less than the day before" which should be 15% (25%-10%). I was wrong, not because I got stuck with the Math, but with the poorly structured on this question. Sad

I'd like to avoid this kinda mistake in the near future, and what's the best solution?

Jimbo

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Post Sun Nov 05, 2017 11:29 am
Total cost price for 1500 heads = $1500
cost price per head = 600/1500 = $0.4

on the 1st day, two-third were sold
i.e 2/3 of 1500 heads
=1000 heads were sold
selling price per head = cost price per head + %profit
= 0.4 + 25% of $0.4
= 1.25 (0.4) = $0.5
Total selling price = 1000 * $0.5 = $500

on the 2nd day, the rest were sold.
i.e 1500-1000 = 500heads
selling price per head = 10% less than selling price on 1st day
= $0.5 - 10% of $0.5
= 0.9 (0.5) = $0.45
Total selling price on 2nd day = 500 * $0.45 =$225
Total selling price for 1500 heads = $500 + $225 = $725
therefore, Gross profit = selling price - cost price
= $725 - $600 = $125

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GMAT/MBA Expert

Stacey Koprince GMAT Instructor
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Post Wed Feb 07, 2007 10:08 pm
Redh is right - you have to read every single word. The test is actually pretty precise with its language - if they had meant us to use percentage, they would have said percentage, not price.

Just remember that every single word you read is there for a reason. Smile

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redh Newbie | Next Rank: 10 Posts Default Avatar
Joined
28 Oct 2006
Posted:
2 messages
Post Wed Feb 07, 2007 6:03 am
True this is a relatively easy or more like average math exercise.

I am not a native speaker also and what I can see as your mistake is the following:

The question did not clearly state what you said!

Not "... 10% than the day before" BUT

....sold at a price per head equal to 10% less than the price each head sold for on the day before.

The emphasis of the statement is ..,10% discount on the price of $ 0.5 and NOT 10% discount on the PERCENTAGE ITSELF the 25%.

I actually disagree with you I think it is quite clear what the question asks. Try to read slowly and carefully and you will definitely see how this goes!

MY SOLUTION PATH BRIEFLY
600/1500= 0.4
125% of 0.4 = 0.5
10% discount ON 0.5 equals 0.45

1000 x 0.5 = 500
500 x 0.45 = 225

725-600= 125

Good luck to you....
Good luck to me ...my examination is 16 february!!

Peace

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