Results 1 to 4 of 4

Thread: Basic math problem

  1. #1
    Newbie
    Joined
    Apr 2017
    From
    NYC
    Posts
    2

    Basic math problem

    I'm going on a trip with my friend. He put both airfares on his card (total: $260); I paid car rental on mine (total: $120) He claims I owe him $140 because 260-120=140. I think I owe him $70 because:

    I owe him $130 for airfare (1/2 of 260); he owes me $60 for car rental (1/2 of $120). So, 130-60=70. Who's right???
    Follow Math Help Forum on Facebook and Google+

  2. #2
    MHF Contributor
    skeeter's Avatar
    Joined
    Jun 2008
    From
    North Texas
    Posts
    16,073
    Thanks
    3635

    Re: Basic math problem

    Quote Originally Posted by Geos View Post
    I'm going on a trip with my friend. He put both airfares on his card (total: \$260); I paid car rental on mine (total: \$120) He claims I owe him \$140 because 260-120=140. I think I owe him \$70 because:

    I owe him \$130 for airfare (1/2 of 260); he owes me \$60 for car rental (1/2 of \$120). So, 130-60=70. Who's right???
    Total expenses were 120+260 = 380.

    Fair share is half, 190.

    You paid 120, he paid 260 ... you owe him 70.
    Last edited by skeeter; Apr 13th 2017 at 02:59 AM.
    Follow Math Help Forum on Facebook and Google+

  3. #3
    Newbie
    Joined
    Apr 2017
    From
    NYC
    Posts
    2

    Re: Basic math problem

    YES! Thanks for the reply. He finally saw the wisdom of my ways.
    Follow Math Help Forum on Facebook and Google+

  4. #4
    MHF Contributor

    Joined
    Apr 2005
    Posts
    19,243
    Thanks
    2835

    Re: Basic math problem

    Equivalently, he paid 260-120= 140 (his calculation) more than you did. But you are splitting all costs 50-50 so you owe him 140/2= 70.
    Follow Math Help Forum on Facebook and Google+

Similar Math Help Forum Discussions

  1. basic math problem
    Posted in the Algebra Forum
    Replies: 3
    Last Post: Nov 20th 2009, 05:22 PM
  2. Basic Math Problem
    Posted in the Algebra Forum
    Replies: 6
    Last Post: Jul 28th 2009, 03:47 PM
  3. Basic math problem
    Posted in the Algebra Forum
    Replies: 3
    Last Post: Jun 14th 2009, 10:22 AM
  4. Basic Math Problem
    Posted in the Algebra Forum
    Replies: 6
    Last Post: May 16th 2009, 12:48 PM

Search Tags


/mathhelpforum @mathhelpforum