1.

5. यदि (30 + 5b) : (30 -5b) = 5:1का मान होगाहो तो, d: b

Answer»

3a+5b/3a-5b=5/13a/b+5/3a/b-5=5/1(dividing by b)3a/b+5=15a/b-2530=12a/ba/b=5/3



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