Question

the instructions to mix a cool drink is to use concentrate and water in a ratio 2:9 how much water should be added to 500ml of concentrate​

Answer 1

2250ml

Explanation:

The concentrate-to-water ratio is 2:9. This means 2ml of concentrate requires 9ml of water. We have 500ml of concentrate, which is 250 times more than 2ml, so to find the amount of water, we also multiply 9ml by 250:

2ml concentrate : 9ml water

(Multiply both sides by 250)

500ml concentrate : 2250ml water