Question

A camp has food stock for 500 people for 70 days. If 200 more people join the camp, how long will the stock last?

Answer 1

Hi friend,

This is a inverse proportion question.

500 people=70 days food
500+200=700(as 200 more people joined)=x days food.

Let's solve,

as its inverse proportion then,

500*70=700*x
500*70/700=x
x=50days.

If the number of people is 700 then the food will last for 50 days.

Hope it helped you..............

Answer 2

you can do using reverse proportion.

also in simple words as:
there is food for 500 people for 70 days.
so there is food for 1 person for  70* 500 = 35, 000 days.

Now there are  700 people...
         So food will last :  35,000/700 = 50 days only.