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Q.596 :  यदि m : n = 3 : 2 तो (4m + 5n) : (4m - 5n) किसके बराबर होगा?

(a) 4 : 9
(b) 9 : 4
(c) 11 : 1
(d) 9 : 1
View Answer
Answer :11 : 1

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