A garrison of 3000 men has provision for 30 days. If after 10 days, th

1.	A garrison of 3000 men has provision for 30 days. If after 10 days, they are reinforced by 1000 men, how long will the provisions last?1). 12 days2). 14 days3). 15 days4). 18 days
Answer» After 10 days, the PROVISION is left for 3000 men and is for 20 days. when 1000 more men join, the total number in the garrison are 4000. “If 3000 men can CONSUME FOOD in 20 days, then 4000 will consume it in how many days” 3000 men consume food in 20 days 1 man consume food in 20 × 3000 days (more days) 4000 men consume food in $(= \;\frac{{20 \times 3000}}{{4000}} = 15\;{\rm{days}})$

A garrison of 3000 men has provision for 30 days. If after 10 days, they are reinforced by 1000 men, how long will the provisions last?1). 12 days2). 14 days3). 15 days4). 18 days

Answer»

After 10 days, the PROVISION is left for 3000 men and is for 20 days. when 1000 more men join, the total number in the garrison are 4000.

“If 3000 men can CONSUME FOOD in 20 days, then 4000 will consume it in how many days”

3000 men consume food in 20 days

1 man consume food in 20 × 3000 days (more days)

4000 men consume food in $(= \;\frac{{20 \times 3000}}{{4000}} = 15\;{\rm{days}})$