oquiella wrote:4. Is x/y a terminating decimal?
(1) x is a multiple of 2
(2) y is a multiple of 3
Why not C? Explain
Both statements are satisfied by the following cases:
Case 1: x=2 and y=3
In this case, x/y = 2/3 = .666.....
Since x/y is non-terminating, the answer to the question stem is NO.
Case 2: x=6 and y=3
In this case, x/y = 6/3 = 2.
Since x/y is terminating, the answer to the question stem is YES.
Since the answer is NO in Case 1 but YES in Case 2, the two statements combined are INSUFFICIENT.
The correct answer is
E.
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