a, b, c and d are non-zero integers such that (ab) divides (cd). If a – McqOptions

MCQOPTIONS

1.	a, b, c and d are non-zero integers such that (ab) divides (cd). If a and c are coprime, then which one of the following is correct?
A.	a is a factor of c
B.	a is a factor of b
C.	a is a factor of d
D.	d is a factor of a
Answer» D. d is a factor of a

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