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# When 1/20% of 4,000 is subtracted from 1/10 of 4,000, the difference

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Math Expert
Joined: 02 Sep 2009
Posts: 46302
When 1/20% of 4,000 is subtracted from 1/10 of 4,000, the difference [#permalink]

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21 Feb 2016, 10:07
1
4
00:00

Difficulty:

15% (low)

Question Stats:

70% (00:54) correct 30% (00:48) wrong based on 149 sessions

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When 1/20% of 4,000 is subtracted from 1/10 of 4,000, the difference is

A. 50
B. 200
C. 380
D. 398
E. 400

Kudos for correct solution.

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Re: When 1/20% of 4,000 is subtracted from 1/10 of 4,000, the difference [#permalink]

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21 Feb 2016, 11:38
1
1
(1/10)*4000 - (1/20*100)*4000
=400 - 2
= 398

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Re: When 1/20% of 4,000 is subtracted from 1/10 of 4,000, the difference [#permalink]

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22 Feb 2016, 00:55
1/20 % of 4000 = 2
1/10 of 4000 = 400

400-2 = 398
Ans:D
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Re: When 1/20% of 4,000 is subtracted from 1/10 of 4,000, the difference [#permalink]

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22 Feb 2016, 01:19
1
1
In such questions, I believe it is best if we simplify the statements (1/20 % = 1/20 of 1%)

1% of 4000 = 40
1/20 of 40 = 2

so 400 - 2 = 398

D
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When 1/20% of 4,000 is subtracted from 1/10 of 4,000, the difference [#permalink]

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22 Feb 2016, 15:59
1
Related Resources
The following free video covers the concepts/strategies that are useful for answering this question in our head:
Cheers,
Brent
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Re: When 1/20% of 4,000 is subtracted from 1/10 of 4,000, the difference [#permalink]

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23 Feb 2016, 02:44
Bunuel wrote:
When 1/20% of 4,000 is subtracted from 1/10 of 4,000, the difference is

A. 50
B. 200
C. 380
D. 398
E. 400

Kudos for correct solution.

Always remember: Whenever you are given a percentage, simply divide the number by 100
1/20% of 4000 = 4000/(20*100) = 2
1/10 of 4000 = 4000/10 = 400

Therefore difference = 400 - 2 = 398
Option D
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Re: When 1/20% of 4,000 is subtracted from 1/10 of 4,000, the difference [#permalink]

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25 Feb 2016, 08:26
1

$$1/20% of 4000$$
=$$(1/20*100)*4000$$=2

$$(1/10)of 4000$$=400

400-2 =398

+1 kudo,if i helped.
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Re: When 1/20% of 4,000 is subtracted from 1/10 of 4,000, the difference [#permalink]

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04 Aug 2017, 09:37
Hello from the GMAT Club BumpBot!

Thanks to another GMAT Club member, I have just discovered this valuable topic, yet it had no discussion for over a year. I am now bumping it up - doing my job. I think you may find it valuable (esp those replies with Kudos).

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Re: When 1/20% of 4,000 is subtracted from 1/10 of 4,000, the difference   [#permalink] 04 Aug 2017, 09:37
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