At a donation drive, the residents of Punggol had to give away some cans of
food. On Monday, they gave away \({1\over 8}\) of the cans of food. On Tuesday, they
gave away 16 more cans of food than on Monday. On Wednesday, they gave
away 24 cans of food. There were 56 more cans of food to be given away.
What was the total number of cans of food to be given away?
Giving away 1/8 leaves 7/8 ths
x = originl amount
7/8 x - 1/8x-16-24 = 56
x = 128 cans