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Question

125 peoples have food sufficient for 18 days is 25 more people join them how long will the fast food last now?

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Solution

Let the total amount of food = x
(the total amount of food is constant)
initially total number of person =125
it last for 18 days
so for 18 days a person get a total food of x/125
that is x/125=18
x=125*18
now the number of person increased to 150
so x/150 = Number of days food last.
sure it will be less than 18
and we found x=125*18
so new number of days = (125*18)/150=15
the Number of days food last is 15


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