Question

65:30::40? find the answer​

Answer 1

65 : 30 :: 40 : x

By invertive method ,

x : 40 :: 30 : 65

By mean multiplication ,

x : 1 :: 40 × 30 : 65

x = $\frac{120}{65}$

x = $\frac{24}{13}$

x = 1 $\frac{11}{13}$