We are give that each friend took 2/3 pound of grapes from the bowl. Therefore, to know the total amount taken by the four friends, we will simply do cross multiplication as follows:
1 friend .................> 2/3 pounds
4 friends ...............> ?? pounds
Amount taken by the 4 friends = [4*(2/3)] / 1 = 8/3 pounds
The bowl originally had 8 pounds and 8/3 pounds were taken, therefore:
remaining amount = 8 - 8/3 = 16/3 pounds
