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The figure above represents a circle graph of Company H's

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The figure above represents a circle graph of Company H's [#permalink]

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New post 07 Dec 2012, 09:21
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The figure above represents a circle graph of Company H's total expenses broken down by the expenses for each of its five divisions. If O is the center of the circle and if Company H's total expenses are $5,400,000, what are the expenses for Division R ?

(1) x = 94
(2) The total expenses for Divisions S and T are twice as much as the expenses for Division R.
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Re: The figure above represents a circle graph of Company H's [#permalink]

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The figure above represents a circle graph of Company H's total expenses broken down by the expenses for each of its five divisions. If O is the center of the circle and if Company H's total expenses are $5,400,000, what are the expenses for Division R ?

(1) x = 94. The expenses for Division R = 94/360*$5,400,000. Sufficient.

(2) The total expenses for Divisions S and T are twice as much as the expenses for Division R. Not sufficient.

Answer: A.
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Re: The figure above represents a circle graph of Company H's [#permalink]

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New post 13 Dec 2012, 03:14
I resolved it alone :) i'm studying from october. i'd like to start an mba next year, but i have to pass the gmat with 670. I'm studying in this way: math (1 hour per day), verbal 5 hours per week. honestly i resolve 50% of the questions I try on the gmatclub. i don't know..maybe I should try a gmat practice test to assess myself, but i feel not so confident. when I read your posts you are amazing, being able to solve very hard question according to me.
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Re: The figure above represents a circle graph of Company H's [#permalink]

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New post 18 Jun 2013, 01:40
Bumping for review and further discussion*. Get a kudos point for an alternative solution!

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Re: The figure above represents a circle graph of Company H's [#permalink]

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Re: The figure above represents a circle graph of Company H's [#permalink]

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New post 11 Sep 2015, 00:14
Statement 1 :expense of R: (94/360)*amount === definite value , sufficient
statement 2 : of no use

IMO : A
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Re: The figure above represents a circle graph of Company H's [#permalink]

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New post 11 Sep 2015, 00:15
Statement 1 :expense of R: (94/360)*amount === definite value , sufficient
statement 2 : of no use

IMO : A
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Re: The figure above represents a circle graph of Company H's [#permalink]

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New post 24 Dec 2015, 21:49
We need to find the area of the sector that covers region R. For which we need the angle of the same.

Statement 1 gives that angle. Sufficient
Statement 2 speaks of two other sectors. But no clarity on the other sectors makes this insufficient

Hence A
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Re: The figure above represents a circle graph of Company H's [#permalink]

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New post 24 May 2016, 05:02
Stem :Area of sector R : total circle * revenue = x/360 * revenue. So all we need is x

A) x handed to us. sufficient

B) Q + S = 2x. But what is x?

Answer: A
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Re: The figure above represents a circle graph of Company H's [#permalink]

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New post 20 Aug 2016, 06:52
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Walkabout wrote:
Attachment:
Expenses.png
The figure above represents a circle graph of Company H's total expenses broken down by the expenses for each of its five divisions. If O is the center of the circle and if Company H's total expenses are $5,400,000, what are the expenses for Division R ?

(1) x = 94
(2) The total expenses for Divisions S and T are twice as much as the expenses for Division R.


Target question: How many of the five divisions have an expense which is more than the average (arithmetic mean) of the expenses of the five divisions?

This is a great candidate for REPHRASING the target question.

IMPORTANT: If we add the percentages (a%, b%, c%, d%, and e%), we get 100%
So, the average percent share = 100%/5 = 20%

So, we can REPHRASE the target question....
REPHRASED target question: How many of the five divisions have MORE than 20% of the TOTAL expenses

Aside: We have a free video with tips on rephrasing the target question: http://www.gmatprepnow.com/module/gmat-data-sufficiency?id=1100

Now onto the statements....

Statement 1: a > 19 > b > c > d > e
We know that b, c, d and e have less than 19% of the total expenses, which means they each have less than 20% of the TOTAL expenses.
If b, c, d and e each = less than 19%, then b+c+d+e is less than (4)(19%)
(4)(19%) = 74%, which means division a must comprise more than 26% percent of the TOTAL expenses.
So, exactly 1 division has MORE than 20% of the TOTAL expenses
Since we can answer the REPHRASED target question with certainty, statement 1 is SUFFICIENT

Statement 2: a > 21 > b > c > d > e
There are several values of a, b, c, d and e that satisfy statement 2. Here are two:
Case a: a = 23, b = 20.5, c = 19.5, d = 19 and e = 18. In this case, 2 divisions have MORE than 20% of the TOTAL expenses
Case b: a = 62, b = 11, c = 10, d = 9 and e = 8. In this case, 1 division has MORE than 20% of the TOTAL expenses
Since we cannot answer the REPHRASED target question with certainty, statement 2 is NOT SUFFICIENT

Answer =
[Reveal] Spoiler:
A



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Re: The figure above represents a circle graph of Company H's   [#permalink] 20 Aug 2016, 06:52
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