यदि A:B= 7:9 और B:C= 3:5 तो A:B:C किसके बर – McqOptions

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1.	यदि A:B= 7:9 और B:C= 3:5 तो A:B:C किसके बराबर है?
A.	7:9:15
B.	21:35:45
C.	7:3:15
D.	7
Answer» B. 21:35:45

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