pure fruit concentrate must be diluted with water in the ratio 1:7 how many mililitre of concentrate are needed to make 5L cool drink?

To find the amount of concentrate needed, we need to convert the given ratio to ml.

1:7 can be represented as 1 part concentrate to 7 parts water.

Therefore, the total ratio parts will be 1 + 7 = 8 parts.

To find the amount of concentrate needed, we divide the total volume (5L) by the total ratio parts (8 parts).

Concentrate needed = (5L / 8) * 1 part = 0.625L

Since 1L = 1000ml, the amount of concentrate needed is 0.625L * 1000ml/L = <<0.625*1000=625>>625 ml.

Therefore, 625 ml of fruit concentrate is needed to make 5L of cool drink.