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    niksom's Avatar
    niksom Posts: 3, Reputation: 1
    New Member
    		  
    #1

    Mar 10, 2009, 11:21 AM
    Unitary method
    Hi folks

    There is food for 1200 men for 28 days. 4 days later some no. of men leave the group. Nowthe food supply lasts for 32 days more how many men in all left the group?

    Waiting for your response

    Mudit gupta
    Class vii
    Dps kanpur
    Perito's Avatar
    Perito Posts: 3,139, Reputation: 150
    Ultra Member
    		  
    #2

    Mar 10, 2009, 12:03 PM

    A = amount of food to feed one man for one day.
    M = number of men

    A * M = 28, right?

    You take it from there. You'll have to figure out an expression for how much good they already ate and subtract it from the total. Then you'll be able to figure out by solving simultaneous equations.
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