A chef cooked 8 kilograms of mashed potatoes for a dinner party. If the guest only ate 2/5 of the amount he cooked, how much did they eat?

Step-by-step explanation:

8 kg of mash potato

2/5 ate

So you'll need to do 8*2/5

Step 1: Divide 8 by 5, 8/5=1.6 kg

1.6 kg=1/5 of mashed potato cooked

Multiply by 2 as 2 parts eaten.

1.6*2 = 3.2 kg of mashed potato cooked

3.2 kg = 2/5 of potato eaten

Therefore, only 3.2 kg of mashed potato have been eaten