Question

A family of 6 persons had food for 18 days , after 3 days 1 person goes out of station . For how many days the food will last now ?

Answer 1

Answer:

Total period = 18 days

After 3 days, period = 18 days - 3 days = 15 days

Number of persons in the family at the beginning = 6

Now, after 3 days, 1 person goes out of station

So, number of persons after 3 days = 6 - 1 = 5

Suppose the remaining food will last for x days.

So, by the inverse proportion; we have;

⇒5:6 :: 15:x⇒56 = 15x⇒x = 155×6 = 18

Therefore, the remaining food will last for 18 days.

 

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