Question

8 oranges and 5 mangos cost as much as 5 oranges and 7 mangos. The ratio of the cost of one orange to that of one mango is

Answer 1

let the cost of one orange = x

the cost of 8 oranges =8x

let the cost of one mango =y

cost of 5 mangoes = 5y

their sum 8x+5y........(1)

cost of 5 oranges = 5x

cost of 7 mangoes =7y

their sum= 5x+7y........(2)

(1)=(2)

8x +5y= 5x+7y

3x=2y

x=2y/3

ratio = 2y/3/y

ratio= 2:3