A camp has food stock for 500 people for 70 days.if 200more peole join tha camp how long will tha stock last

food=500*70 people days.

food=700*days
same food, so
days=500/700 * 70=50 days.

To answer this question, we can use a simple proportion to calculate the number of days the food stock will last for 700 people.

The initial scenario gives us: 500 people with food stock for 70 days.

Let's set up the proportion as follows:

500 people ---- 70 days
700 people ---- x days

To solve for x, we can use cross-multiplication:

500 * x = 700 * 70

Multiply the numbers on each side:

500x = 49000

Now, divide both sides of the equation by 500 to isolate x:

x = 49000 / 500

Simplifying this:

x = 98

Therefore, if 200 more people join the camp, the food stock will last for 98 days.