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01 Nov 2016, 04:40
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If x is divisible by 2, 7, and 11, which of the following must also be a divisor of x?
A. 308
B. 154
C. 70
D. 44
E. 21
A. 308
B. 154
C. 70
D. 44
E. 21
stonecold
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Joined: 12 Aug 2015
Last visit: 09 Apr 2024
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Schools: Boston U '20 (M)
GRE 1: Q169 V154
A simple theory for such Question.
If Multiple divisors of any integers are mentioned just take the LCM of all the divisors and the integer will be divisible by that.
LCM of 2,7,11= 154
Hence x must be divisible by 154
Hence B
If Multiple divisors of any integers are mentioned just take the LCM of all the divisors and the integer will be divisible by that.
LCM of 2,7,11= 154
Hence x must be divisible by 154
Hence B
01 Nov 2016, 06:18
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Bunuel
If x is divisible by 2, 7, and 11, which of the following must also be a divisor of x?
A. 308
B. 154
C. 70
D. 44
E. 21
A. 308
B. 154
C. 70
D. 44
E. 21
Since, x is divisible by 2, 7, and 11 so x must be divisible by LCM of 2, 7 and 11 = 154
ANswer: Option B
