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Is the integer n a multiple of 140?

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Is the integer n a multiple of 140? [#permalink] New post   26 Jan 2021, 16:02
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A
B
C
D
E

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35% (medium)

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58% (00:47) correct 42% (00:44) wrong based on 119 sessions
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Is the integer n a multiple of 140?

(1) n is a multiple of 10.
(2) n is a multiple of 14.
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E
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Re: Is the integer n a multiple of 140? [#permalink] New post   26 Jan 2021, 19:50
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Is n a multiple of 140. i.e is n = 140, 280, 420 ....

Statement 1: n is a multiple of 10

n = 10 is a multiple of 10, but 10 is not a multiple of 140 (it is a factor of 140)


Therefore Statement 1 Alone is Insufficient. Answer options could be B, C or E



Statement 2: n is a multiple of 14.

n = 14 is a multiple of 14, but not a multiple of 140.


Therefore Statement 2 Alone is Insufficient. Answer Options could be C or E



Combining Both Statements: n is a multiple of 10 and 14 i.e LCM of 10 and 14 = 70

n = 70 is a multiple of 10 and 14, but is not a multiple of 140


Therefore Both Statements together are Insufficient.



Option E

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Re: Is the integer n a multiple of 140? [#permalink] New post   26 Jan 2021, 21:52
Asked: Is the integer n a multiple of 140?

(1) n is a multiple of 10.
If n = 20; n is not a multiple of 140
But if n=280; n is a multiple of 140
NOT SUFFICIENT

(2) n is a multiple of 14.
If n = 28; n is not a multiple of 140
But if n=280; n is a multiple of 140
NOT SUFFICIENT

(1) + (2)
(1) n is a multiple of 10.
(2) n is a multiple of 14.
If n = 70; n is not a multiple of 140
But if n=280; n is a multiple of 140
NOT SUFFICIENT

IMO E
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Re: Is the integer n a multiple of 140? [#permalink] New post   26 Jan 2021, 23:21
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Is the integer n a multiple of 140?

(1) n is a multiple of 10.
n can be 140 or 150
Not sufficient

(2) n is a multiple of 14.
n can be 14 or 140
Not sufficient

(1) + (2)
n can be 70 or 140
Not sufficient

Option E

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Re: Is the integer n a multiple of 140? [#permalink] New post   29 Jan 2024, 14:24
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: Is the integer n a multiple of 140? [#permalink]
29 Jan 2024, 14:24
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