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If n is an integer such that 12 ≤ n ≤ 24, is n a prime number?
(1) The remainder when n is divided by 4 is 1.
(2) The remainder when n is divided by 6 is 1.
(1) The remainder when n is divided by 4 is 1.
(2) The remainder when n is divided by 6 is 1.
Updated on: 23 Mar 2020, 04:54
Originally posted by CareerGeek on 23 Mar 2020, 04:39.
Last edited by CareerGeek on 23 Mar 2020, 04:54, edited 1 time in total.
Last edited by CareerGeek on 23 Mar 2020, 04:54, edited 1 time in total.
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Bunuel
If n is an integer such that 12 ≤ n ≤ 24, is n a prime number?
(1) The remainder when n is divided by 4 is 1.
(2) The remainder when n is divided by 6 is 1.
(1) The remainder when n is divided by 4 is 1.
(2) The remainder when n is divided by 6 is 1.
(1) The remainder when n is divided by 4 is 1.
—> Possible values of n = 13, 17, 21
—> Insufficient
(2) The remainder when n is divided by 6 is 1.
—> Possible values of n = 13, 19
—> Sufficient
Option B
Posted from my mobile device
23 Mar 2020, 04:50
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Bunuel
If n is an integer such that 12 ≤ n ≤ 24, is n a prime number?
(1) The remainder when n is divided by 4 is 1.
(2) The remainder when n is divided by 6 is 1.
(1) The remainder when n is divided by 4 is 1.
(2) The remainder when n is divided by 6 is 1.
Asked: If n is an integer such that 12 ≤ n ≤ 24, is n a prime number?
(1) The remainder when n is divided by 4 is 1.
n = {13,17,21}
NOT SUFFICIENT
(2) The remainder when n is divided by 6 is 1.
n = {13,19}
Both 13 & 19 are prime numbers
SUFFICIENT
IMO B
