Results 1 to 3 of 3

Math Help - A tricky question on %'s....

  1. #1
    Newbie
    Joined
    Aug 2009
    Posts
    6

    Cool A tricky question on %'s....

    A shopkeeper defrauds both the dealer and the customer by measuring weights incorrectly.When he is purchasing items from the dealer,he takes 20% more than the indicated weights and when he is selling them to the customer,he gives 20% less than the indicated weight.if the price,that the shopkeeper charges his customer is the same as what the dealer charges the shopkeeper,then what profit percentage does the shopkeeper make?
    Follow Math Help Forum on Facebook and Google+

  2. #2
    Super Member malaygoel's Avatar
    Joined
    May 2006
    From
    India
    Posts
    648
    Quote Originally Posted by player007 View Post
    A shopkeeper defrauds both the dealer and the customer by measuring weights incorrectly.When he is purchasing items from the dealer,he takes 20% more than the indicated weights and when he is selling them to the customer,he gives 20% less than the indicated weight.if the price,that the shopkeeper charges his customer is the same as what the dealer charges the shopkeeper,then what profit percentage does the shopkeeper make?
    Lets say that dealer is selling at the rate of 100 per kg.
    Since the shopkeeper measures 20% more...he buys at 100 per 1.2 kg(he paid 100 per kg but got 100 per 1.2kg )
    Hence the shopkeeper bought at 100 per 1.2 kg or 83.33 per kg.

    Now shopkeeper sells at 100 per .8 kg(frauds by 20%)
    100 per .8kg is 125 per kg

    hence, per kg shopkeeper has profit of 125-83.33=41.66

    Profit percentage= \frac{41.66}{83.33}\cdot 100% =50%
    Last edited by malaygoel; August 8th 2009 at 07:45 AM.
    Follow Math Help Forum on Facebook and Google+

  3. #3
    Newbie
    Joined
    Aug 2009
    Posts
    6
    That was a nice solution u gave.....it's perfect.
    Follow Math Help Forum on Facebook and Google+

Similar Math Help Forum Discussions

  1. Tricky Tut Question
    Posted in the Number Theory Forum
    Replies: 4
    Last Post: August 20th 2011, 12:42 AM
  2. tricky question.. need help!
    Posted in the Calculus Forum
    Replies: 1
    Last Post: October 6th 2009, 03:56 AM
  3. Tricky question
    Posted in the Pre-Calculus Forum
    Replies: 3
    Last Post: January 25th 2009, 07:23 AM
  4. Tricky question..
    Posted in the Math Topics Forum
    Replies: 1
    Last Post: January 12th 2009, 05:56 PM
  5. Tricky question
    Posted in the Advanced Statistics Forum
    Replies: 0
    Last Post: October 25th 2007, 07:00 PM

Search Tags


/mathhelpforum @mathhelpforum