\[\frac{a}{b}=\frac{c}{d'}\]then \[\frac{ma+nc}{mb+nd}=\] – McqOptions

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1.	\[\frac{a}{b}=\frac{c}{d'}\]then \[\frac{ma+nc}{mb+nd}=\]
A.	an : bm
B.	m : n
C.	a : b
D.	md : an
Answer» D. md : an

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