Question

In a camp 95 men had provisions for 200 days. after 5 days 30 men left the camp. for how many days will the remaining provisions last

Answer 1

Roughly 285 days.  Since theres enough to last 95 men 200 days that means that the total provisions is 19000.  After 5 days there is 18525 provisions remaining (losing 95 for each day) since these remaining provisions are only being divided up by 65 men instead of 95, you divide 18525 by 65 to get 285.