Question

A camp of soldiers has a provision for 60 soldiers, sufficient for 40 days. After 20 days 20 soldiers left the camp. Then find how many more days the provision will last?
Options

30 days

40 days

25 days

20 days

Answer 1

Answer:

i think 30 days would sufficient

Answer 2

The answer is 30 days.

1) Let a soldier consume x units of food in a day.

2) Food consumed in a day by 60 soldiers would be 60x.

3) Total food supply for 60 soldiers for 40 days would be 2400x.

4) 20 soldiers, left the camp after 20 days

5)Food consumed by 60 soldiers in 20 days would be 1200x.

6) Remaining food = 2400x-1200x = 1200x

Remaining soldier = 60-20 = 40

7) Number of days the food would last = 1200/40 = 30 days