what fraction of the bill should each person pay?

Question

Sonya is a student at Urban State College. Because her financial resources are limited, she has moved into a house with four other people. The house is high speed internet, and the bill comes every two months. Sonya moved in on August 1. When the bill for July-August comes, what fraction of the bill should each person pay?

Answer 1

Assuming a fair division of bills, Sonya will only have to pay for the service for August and not for July's cost.

-Given the total bill, totalX, divide by 2 to get the cost for August. totalX/2 = augustX

-Then divide by the 5 people to get Sonya's fraction augustX/5 = sonyaX

-Everyone else will be divide the remainder (totalX - sonyaX)/4