GMAT Problem Solving (PS) | Re: If p and q are positive integers. If p is divided by 2, the remainder

it is given that both p and q are odd

hence pq + 1 is even is true (I)
pq/2 is not an integer as odd/even is decimal (II)

if p and q are 1 and 7 - pq is not a multiple of 12 - False

Only I MUST be true - hence answer A

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