A camp has enough food to feed certain number of people for 50 days. If 30 more people join the camp after 10 days, the food will last for 25 days. How many people were earlier present in the camp?
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Initially there were 300 persons in the camp who had food for 42 days. Now, with more 50 coming in, there are a total of 350 persons and say the food will now last for x day, then
300×42=350×x
⇒
350
300×42
=x
⇒x=36days
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