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# If 70 percent of 600 is 40 percent of x, then x=?

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If 70 percent of 600 is 40 percent of x, then x=? [#permalink]

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01 May 2012, 00:09
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5% (low)

Question Stats:

83% (01:35) correct 17% (00:40) wrong based on 155 sessions

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If 70 percent of 600 is 40 percent of x, then x=?

A. 105
B. 168
C. 342 and 6/7
D. 660
E. 1050

Guys I got A....

But OA is ....
[Reveal] Spoiler: OA

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Re: If 70 percent of 600 is 40 percent of x, then x=? [#permalink]

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01 May 2012, 00:17
GMATD11 wrote:
If 70 percent of 600 is 40 percent of x, then x=?

A. 105
B. 168
C. 342 and 6/7
D. 660
E. 1050

Guys I got A....

But OA is ....

Given: 0.7*600=0.4x --> 420=4/10*x --> x=1,050.

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Re: If 70 percent of 600 is 40 percent of x, then x=? [#permalink]

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12 Jul 2015, 05:58
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Re: If 70 percent of 600 is 40 percent of x, then x=? [#permalink]

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12 Jul 2015, 10:21
70% of 600 = 420, which is 40% of 1050. Ans (E).

Shortcut here is 7*6 = 420, 42/4 = 10.5.
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Re: If 70 percent of 600 is 40 percent of x, then x=? [#permalink]

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10 Aug 2015, 16:36
0.7 * 600 = 0.4 * x

x = 7/4 * 600

the trick is to not even spend time solving this, you automatically know its E because all the other answers are so off
Re: If 70 percent of 600 is 40 percent of x, then x=?   [#permalink] 10 Aug 2015, 16:36
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# If 70 percent of 600 is 40 percent of x, then x=?

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