Question

amy, bob and celine deliver papers in a small town. amy delivers twice as many papers as bob, and celine delivers twelve papers less than amy. if they deliver 128 papers in total, how much papers does celine deliver?

Answer 1

Set up an equation to solve this problem. Suppose Bob delivers x papers, then Amy delivers 2x papers, Celine delivers (2x-12) papers, according to the information in the problem. The number of papers delivered in total in 128, therefore x+2x+(2x-12)=128, x=28. Substitute x=28 in 2x-12, Celine delivered 2*28-12=44 papers.