A fruit juice blend is made by mixing the juice of oranges and apples in the ratio 7:5 . If 168 litres of orange juice is used , how many litres of apple juice must be used ?

Answer 1

To find the amount of apple juice needed, we need to find the ratio of orange juice to apple juice.

Given that the ratio of orange juice to apple juice is 7:5, we can set up the equation:

7/5 = 168/x

Cross-multiplying, we get:

7x = 168 * 5

Simplifying this, we get:

7x = 840

To solve for x, we divide both sides of the equation by 7:

x = 840 / 7

Simplifying this, we get:

x = 120

Therefore, 120 litres of apple juice must be used.