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Source: — Problem Solving |

by homersimpson » Sat Dec 19, 2009 10:17 am
x % of 40 = y

40x/100 = y

x = 100y/40

x = 5y/2

10x = 25y
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by truplayer256 » Sat Dec 19, 2009 10:18 am
x/100*40=y

x/100=y/40

What number would you multiply x/100 by to get 10x?

The answer is 1000.

Multiply y/40 by a 1000 to get 25y.
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by Xbond » Sat Dec 19, 2009 10:32 am
many thks guys
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by Scott@TargetTestPrep » Wed Oct 09, 2019 6:46 pm
Xbond wrote:Hi there,

I don't see how to resolve this one. OA is C


If x percent of 40 is y, then 10x equals

A. 4y
B. 10y
C. 25y
D. 100y
E. 400y
x/100 * 40 = y

x/100 = y/40

x = 100y/40

x = 10y/4

x = 5y/2
Therefore, 10x = 50y/2 = 25y.

Answer: C

Scott Woodbury-Stewart
Founder and CEO
[email protected]

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