word problem...so confusing!

This topic has expert replies
Source: — Problem Solving |

Senior | Next Rank: 100 Posts
Posts: 84
Joined: Tue Feb 05, 2008 8:52 pm
Thanked: 8 times

by luvaduva » Sat May 17, 2008 11:57 pm
Let x = the distance between A and B.

Day 1: Traveled x/3 | Remaining = (2/3)x
Day 2: Traveled (2/5)(2/3)x = (4/15)x | Remaining = x - x/3 + (4/15)x => x - (5/15)x + (4/15)x = (15/15)x - (9/15)x = (6/15)x
Day 3: Traveled 144

Use this to solve for x: 144 = (6/15)x => x =360

Day 1: 360/3 = 120