Question

if x:y=2:3 then value of 6x+7y:12x+5y
is?​

Answer 1

$\frac{x}{y } = \frac{2}{3}$

$\frac{6x + 7y}{12x + 5y} =$

$\frac{6 \frac{x}{y} + 7}{12 \frac{x}{y} + 5 } = \frac{6 \times \frac{2}{3} + 7}{12 \times \frac{2}{3} + 5 } = \frac{4 + 7}{8 + 5} = \frac{11}{13}$