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19^2 + 19/20=

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19^2 + 19/20=  [#permalink]

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New post 25 Apr 2017, 10:51
2
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A
B
C
D
E

Difficulty:

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Question Stats:

95% (00:35) correct 5% (02:01) wrong based on 92 sessions

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\(\frac{19^2 + 19}{20}\)=

A. 19/10
B. 57/20
C. 19
D. 38
E. 361

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19^2 + 19/20=  [#permalink]

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New post Updated on: 01 Jun 2020, 08:31
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SajjadAhmad wrote:
\(\frac{19^2 + 19}{20}\)=

A. 19/10
B. 57/20
C. 19
D. 38
E. 361


Notice that we can factor a 19 from the numerator. That is, 19² + 19 = 19(19 + 1)

So, we get: (19² + 19)/20 = [19(19 + 1)]/20
= 19(20)/20
= 19

Answer: C
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Originally posted by BrentGMATPrepNow on 25 Apr 2017, 10:58.
Last edited by BrentGMATPrepNow on 01 Jun 2020, 08:31, edited 1 time in total.
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Re: 19^2 + 19/20=  [#permalink]

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New post 25 Apr 2017, 11:14
Factoring the numerator: 19(19+1)
20

19(20)
20

the 20's cancel and 19 is left. Answer choice "C".
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Re: 19^2 + 19/20=  [#permalink]

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New post 10 Feb 2019, 07:43
SajjadAhmad wrote:
\(\frac{19^2 + 19}{20}\)=

A. 19/10
B. 57/20
C. 19
D. 38
E. 361


Simplifying, we have:

19(19 + 1)/20 = 19

Answer: C
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Re: 19^2 + 19/20=   [#permalink] 10 Feb 2019, 07:43

19^2 + 19/20=

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