Question

A 150​-gram bag of berries is a mixture of raspberries and blueberries. If ​80% of the bag is​ raspberries, how many grams of blueberries are in a​ bag?

Answer 1

30g

Explanation:

Since the bag is a total of 150 grams...

100% = 150

1% = 150 ÷ 100 = 1.5

Find out 80% of the bag which is finding out how many raspberries there are in the bag.

80% = 1.5 x 80 = 120

The remaining in the bag out of the raspberries is the berries.

150 - 120 = 30 (berries)