Math, asked by deepak9526, 1 year ago

If (3a +5b) : (3a — 5b)= 5:1

Answers

Answered by sourab52
3

30b=12a

a/b=12/30

a:b=3:5

Answered by clockkeeper
10

 \frac{3a + 5b}{3a - 5b}  =  \frac{5}{1}  \\ using \: componendo \: and \: dividendo \: we \: get \\  \frac{((3a + 5b) + (3a - 5b))}{((3a + 5b) - (3a - 5b))}  =  \frac{5 + 1}{5 - 1}  \\  \frac{6a}{10b}  =   \frac{6}{4}  \\  \frac{a}{5b }  =  \frac{1}{2}  \\  \frac{a}{b}  =  \frac{5}{2}

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