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by ganeshrkamath » Wed Sep 11, 2013 11:52 pm
vinay1983 wrote:I dont have its official answer
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Could you please post the question again?

Thanks.
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by [email protected] » Thu Sep 12, 2013 12:16 am
Hi vinay1983,

While this is NOT a GMAT question, it does use "system math", which is an Algebra subject that you'll see in a few Quant questions on Test day.

You have to translate the sentences into "math" to solve:

I'll call...
H = Price of Half Ticket
F = Price of Full Ticket
R = Reservation charge

Here are the formulas you'd form:

H = F(1/2)

Since each ticket has a reservation charge attached to it....

F + R = 262
F + H + 2R = 405

Now you have 3 variables and 3 unique equations, so you can solve using algebra and solve for R....

Try it and you'll see....

Final Answer: 24

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Master | Next Rank: 500 Posts
Posts: 283
Joined: Sun Jun 23, 2013 11:56 pmFollowed by: 26 members
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by ganeshrkamath » Thu Sep 12, 2013 12:23 am
vinay1983 wrote:I dont have its official answer
Image
Half ticket price = H + R
Full ticket price = 2H + R

2H + R = 262_____________(1)
(H + R) + (2H + R) = 405
3H + 2R = 405_____________(2)

(1) * 3:
6H + 3R = 786___________(3)

(2) * 2:
6H + 4R = 810___________(4)

(4) - (3):
R = 24

Choose D

Cheers
Every job is a self-portrait of the person who did it. Autograph your work with excellence.

Kelley School of Business (Class of 2016)
GMAT Score: 750 V40 Q51 AWA 5 IR 8
https://www.beatthegmat.com/first-attemp ... tml#688494
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