$$(1)\ \ Q=\frac{2T}{7}$$AAPL wrote:If Q and T are integers, what is the value of Q?
$$(1)\ \ Q=\frac{2T}{7}$$
$$(2)\ \ \frac{T+7}{2}=\frac{7(Q+2)}{4}$$
The OA is E.
Can any expert assist me with this DS question, please? I don't understand it.
There are many possible values of Q. For example, Q = T = 0. If none of them is 0, then T is a multiple of 7, and Q is a multiple of 2.
T can have values such as ±7, ±14, ±21, etc, and the corresponding values of Q are ±2, ±4, ±6, etc. Insufficient.
$$(2)\ \ \frac{T+7}{2}=\frac{7(Q+2)}{4}$$
$$=> 2T + 14 = \ 7Q + 14$$
$$Q=\frac{2T}{7}$$
It is a copy of Statement 1. Insufficient.
The correct answer: E
Hope this helps!
-Jay
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