Q.75 : यदि A:B =2:3 , B:C =4:5 तथा C:D =5:9 हो तो A:D बराबर होगा ?

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Q.75 : यदि A:B =2:3 , B:C =4:5 तथा C:D =5:9 हो तो A:D बराबर होगा ?
(a) 1:2
(b) 8:27
(c) 6:7
(d) 2:8

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Answer : 8:27