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What is the value of integer n ? (1) n(n + 1)(n + 2) = 120 (2) n! = 24

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V
Joined: 02 Sep 2009
Posts: 41892

Kudos [?]: 129035 [0], given: 12187

What is the value of integer n ? (1) n(n + 1)(n + 2) = 120 (2) n! = 24 [#permalink]

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New post 11 Sep 2017, 00:27
00:00
A
B
C
D
E

Difficulty:

(N/A)

Question Stats:

92% (00:56) correct 8% (00:57) wrong based on 13 sessions

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Kudos [?]: 129035 [0], given: 12187

Manager
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B
Joined: 02 Nov 2015
Posts: 176

Kudos [?]: 23 [0], given: 121

GMAT 1: 640 Q49 V29
Premium Member CAT Tests
Re: What is the value of integer n ? (1) n(n + 1)(n + 2) = 120 (2) n! = 24 [#permalink]

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New post 11 Sep 2017, 01:10
Statement 1 : n=4.
Sufficient.

Statement 2: n=4
Each alone is sufficient.

Answer is D.

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Kudos [?]: 23 [0], given: 121

Senior Manager
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G
Joined: 02 Jul 2017
Posts: 252

Kudos [?]: 59 [0], given: 60

Location: India
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Re: What is the value of integer n ? (1) n(n + 1)(n + 2) = 120 (2) n! = 24 [#permalink]

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New post 11 Sep 2017, 01:47
Find : n <- integer given

(1) n(n + 1)(n + 2) = 120
=> 120 = 4*5*6 ( we don't have to worry about negative numbers as product of 3 -ve numbers is -ve but given number is +ve)
=> n=4
Sufficient

(2) n! = 24
1*2*3*4 = 24
Therefore n=4 , 4! =24
Sufficient

Answer: D

Kudos [?]: 59 [0], given: 60

Re: What is the value of integer n ? (1) n(n + 1)(n + 2) = 120 (2) n! = 24   [#permalink] 11 Sep 2017, 01:47
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