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If the integer x is divisible by 3 but not by 2, then which one of the ... ...

If the integer x is divisible by 3 but not by 2, then which one of the following expres­sions is NEVER an integer?
(A)
(B) ...
(C) ...
(D) ...
(E) ...

*This question is included in Nova Press: Set B - Substitution

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Posted: 05/02/2013 17:46
If x = 3 so choice B becomes 3 divided by 7 so it is not an integer so choice B is correct
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Posted: 05/03/2013 02:06
Hi Haguar,

Remember, we are looking for the expression that is NEVER an integer.

It is true that x/7 is not an integer when x = 3, but it is for some values of x. For example, if x = 21, then x/7 = 21/7 = 3.

Hence, the answer is not (B).

Nova Press
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Posted: 05/05/2013 02:50
I got it ..Thank you :)
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If the integer x is divisible by 3 but not by 2, then which one of the ... ... 
Posted: 07/23/2013 23:09
if x=24 24/24=1 so choice E is correct
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Posted: 07/24/2013 01:46
Hi Lee,

The number cannot be divisible by 2, so we cannot chose x to be 24.

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