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# 200 is what percent of 40?

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Math Expert
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200 is what percent of 40?  [#permalink]

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14 Aug 2016, 06:01
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5% (low)

Question Stats:

90% (00:25) correct 10% (00:37) wrong based on 104 sessions

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200 is what percent of 40?

A. 0.2%
B. 2%
C. 5%
D. 20%
E. 500%

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Re: 200 is what percent of 40?  [#permalink]

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14 Aug 2016, 08:58
200= x*40/100
x = 500%

Ans; E
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Re: 200 is what percent of 40?  [#permalink]

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17 May 2017, 04:18
200 is what percent of 40?

200 = x% of 40 = $$\frac{x}{100}$$ * 40
x = $$\frac{200 * 100}{40}$$ = 500%

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Re: 200 is what percent of 40?  [#permalink]

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17 May 2017, 04:29
200= X*$$\frac{40}{100}$$
X= $$\frac{200*100}{40}$$
X= 500%.

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Re: 200 is what percent of 40?  [#permalink]

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17 May 2017, 05:04
Bunuel wrote:
200 is what percent of 40?

A. 0.2%
B. 2%
C. 5%
D. 20%
E. 500%

Let, 200 is x% of 40

I.e. 200= (x/100)*40
I.e. x= 500%

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200 is what percent of 40?  [#permalink]

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Updated on: 21 May 2017, 02:15
I would apply a different approach to solve the problem.

We know that 100% of 40 is 40.
Therefore 200% of 40 is 40+40 = 80.
300% of 40 is 40+40+40 = 120.
400% of 40 is 40+40+40+40=160.
500% of 40 is 40+40+40+40+40=200.

Therefore 200 is 500% of 40. Hence E is the answer.
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Originally posted by Kritesh on 17 May 2017, 06:30.
Last edited by Kritesh on 21 May 2017, 02:15, edited 1 time in total.
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Re: 200 is what percent of 40?  [#permalink]

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17 May 2017, 07:47
Bunuel wrote:
200 is what percent of 40?

A. 0.2%
B. 2%
C. 5%
D. 20%
E. 500%

$$\frac{200}{40}*100$$ = $$500$$%

Thus, the correct answer must be (E) 500%
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Re: 200 is what percent of 40?  [#permalink]

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19 May 2017, 05:25
Bunuel wrote:
200 is what percent of 40?

A. 0.2%
B. 2%
C. 5%
D. 20%
E. 500%

200/40 x 100% = 5 x 100% = 500%

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200 is what percent of 40?  [#permalink]

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20 May 2017, 08:03
Bunuel wrote:
200 is what percent of 40?

A. 0.2%
B. 2%
C. 5%
D. 20%
E. 500%

Any number greater than 40 will be MORE THAN 100% of 40.

Only one answer is greater than 100%: E
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Re: 200 is what percent of 40?  [#permalink]

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18 Apr 2018, 05:19
Top Contributor
Bunuel wrote:
200 is what percent of 40?

A. 0.2%
B. 2%
C. 5%
D. 20%
E. 500%

Let p = the percent
So, we get: 200 = p percent of 40
Rewrite as: 200 = (p/100)(40)
So, we get: 200 = (40p)/100
Simplify right side: 200 = (2p)/5
Multiply both sides by 5 to get: 1000 = 2p
Solve: p = 500

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Re: 200 is what percent of 40? &nbs [#permalink] 18 Apr 2018, 05:19
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