A garrison of 400 men had a provision for 31 days. After 28 days 280 persons re-enforcement leave the garrison. Find the number of days for which the remaining ration will be sufficient?
Choose the correct choice from the following answers:
A) 65 days  B) 45 days  C) 10 days  D) 16 days  E) 18 days
400 --- 31   400 --- 3   120 --- ?   400*3 = 120*x =&gt; x =10 days.Answer: 10 days
<result>C</result>
A garrison of 400 men had a provision for 31 days. After 28 days 280 persons re-enforcement leave the garrison. Find the number of days for which the remaining ration will be sufficient?