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# If y > 0, (2y)/20 + (3y)/10 is what percent of y?

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Math Expert
Joined: 02 Sep 2009
Posts: 58415
If y > 0, (2y)/20 + (3y)/10 is what percent of y?  [#permalink]

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07 Mar 2016, 09:18
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Difficulty:

5% (low)

Question Stats:

93% (00:58) correct 7% (01:46) wrong based on 57 sessions

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If y > 0, (2y)/20 + (3y)/10 is what percent of y?

A. 40%
B. 50%
C. 60%
D. 70%
E. 80%

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Joined: 20 Feb 2015
Posts: 762
Concentration: Strategy, General Management
Re: If y > 0, (2y)/20 + (3y)/10 is what percent of y?  [#permalink]

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07 Mar 2016, 10:36
can be reduced to y/10+3y/10 =2y/5=40%
SVP
Joined: 26 Mar 2013
Posts: 2344
Re: If y > 0, (2y)/20 + (3y)/10 is what percent of y?  [#permalink]

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02 Apr 2018, 14:14
Bunuel wrote:
If y > 0, (2y)/20 + (3y)/10 is what percent of y?

A. 40%
B. 50%
C. 60%
D. 70%
E. 80%

Let y = 20.........(2y)/20 + (3y)/10 = (2 *20)/20 + (3 * 20)/10 = 8

The 8/20 = 2/5 =0.4 = 40%

SVP
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Joined: 13 Apr 2013
Posts: 1687
Location: India
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Re: If y > 0, (2y)/20 + (3y)/10 is what percent of y?  [#permalink]

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03 Apr 2018, 05:32
Bunuel wrote:
If y > 0, (2y)/20 + (3y)/10 is what percent of y?

A. 40%
B. 50%
C. 60%
D. 70%
E. 80%

$$\frac{2y}{20} + \frac{3y}{10}$$

$$\frac{8y}{20}$$

$$\frac{2y}{5}* 100$$

$$40%$$

(A)
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Joined: 04 Jan 2015
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If y > 0, (2y)/20 + (3y)/10 is what percent of y?  [#permalink]

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03 Apr 2018, 05:51

Solution:

Approach and Working

To find, $$\frac{(2y)}{20} + \frac{(3y)}{10}$$ is what percent of y, we first have to calculate the value of $$\frac{(2y)}{20} + \frac{(3y)}{10}$$.
• $$\frac{(2y)}{20} + \frac{(3y)}{10}$$ = $$\frac{(2y+ 3y*2)}{20}$$
• $$\frac{8y}{20}$$= $$\frac{2y}{5}$$

Now, we can easily find $$\frac{2y}{5}$$ is what percentage of y.

• $$\frac{2y}{5} /y$$ *100= 40%

Hence, the correct answer is option A.

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If y > 0, (2y)/20 + (3y)/10 is what percent of y?   [#permalink] 03 Apr 2018, 05:51
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