Problema Solution
Fred and George went to a shop, Fred has $112.8 more than George. George wants to buy a remembrall, thus he borrows $17.4 from Fred. George has one fifth as much as Fred after borrowing. How much was Fred's initial money?
Answer provided by our tutors
Fred and George went to a toy shop.
Fred had $112.80 more than George.
George wanted to buy a toy fire truck but didn't have enough money.
So Fred gave him $17.40.
George had 1/5 as much money as Fred after he received the money
and before he paid for the truck.
How much money did Fred have before they went to the shop?
Let F represent the money with Fred and G the money with George.
F = G + 112.8
F - 17.4 = 5(G + 17.4)
G + 112.8 - 17.4 = 5G + 87
4G = 8.40
G = 2.10
F = 114.90
Fred had $114.90 before they went to the shop.