Question:In a fort ration for 2000 people was sufficient for 54 days, After 15 days more people came and the ration lasted only for 20 more days, How many people came ? 

A 2500 
B 2250 
C 1900 
D 1675 

+ Answer
C 

+ Explanation
After 15 days there was ration for 2000 people for 39 days, Suppose x more came 

More people less days

`(2000)/(2000 + x)`

`= 20/39 => 78000`

`= 40000 + 20x => x = 1900`

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Irin Moni

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