यदि (D-C ) का 30% =(D+C) का 18% हो तो अनु� – McqOptions

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1.	यदि (D-C ) का 30% =(D+C) का 18% हो तो अनुपात C:D बराबर होगा ?
A.	2:1
B.	4:6
C.	1:4
D.	7:9
Answer» D. 7:9

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