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If x=kc and y=kt,then y-x =?

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Joined: 27 Feb 2012
Posts: 37
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Kudos [?]: 1 [0], given: 5

If x=kc and y=kt,then y-x =? [#permalink] New post 04 Feb 2013, 14:37
00:00
A
B
C
D
E

Difficulty:

  5% (low)

Question Stats:

100% (01:13) correct 0% (00:00) wrong based on 38 sessions
If x=kc and y=kt,then y-x =?

A) k(t-c)
B) k(c-t)
C) c(k-t)
D) t(k-c)
E) k(1-t)
[Reveal] Spoiler: OA
Expert Post
Veritas Prep GMAT Instructor
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Joined: 16 Oct 2010
Posts: 4877
Location: Pune, India
Followers: 1157

Kudos [?]: 5379 [0], given: 165

Re: If x=kc and y=kt,then y-x =? [#permalink] New post 04 Feb 2013, 20:13
Expert's post
jsphcal wrote:
If x=kc and y=kt,then y-x =?

A) k(t-c)
B) k(c-t)
C) c(k-t)
D) t(k-c)
E) k(1-t)



Just put in the given values of y and x

y - x = kt - kc

Now take k common

y - x = k(t - c)

You get (A) as your answer.

I would suggest you to go through a basic algebra book before moving on because it is necessary for you to know how to manipulate an equation (and related algebra) to do well in Quant.
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Re: If x=kc and y=kt,then y-x =?   [#permalink] 04 Feb 2013, 20:13
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If x=kc and y=kt,then y-x =?

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