Question

If the cost of 9 mangoes and 4 banana is equal to the cost of 3 mangoes and 7 banana , then what is the ratio of cost of 1 banana and 1 mango .

Answer 1

Step-by-step explanation:

let cost of one mango be x and cost of one banana be y.

9x + 4y = 3x + 7y

6x = 3y

3x = 1y

x / y = 1/ 3

hence the ratio of cost of 1 banana and 1 mongo is 1:3

Answer 2

Step-by-step explanation:

let the cost of one mango be x and the cost of one banana be y then the cost of 9 mangoes and 4 bananas =9x+4y and the cost of 3mangoes and 7 bananas=3x+7y since, the cost of 9 mangoes and 4 bananas is equal to the cost of 3 mangoes and 7bananas So,according to question ,. 9x+4y=3x+7y 9x-3x=7y-4y 6x=3y Hence ,the ratio of cost of 1banana and 1mango=3/6=1/2.