A garrison of 400 men had a provision for 31 days. After 27 days 200 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 choices
A) 65 days	B) 45 days	C) 8 days	D) 16 days	E) 18 days

Rationale: 400 - - - 31 400 - - - 4 200 - - - ? 400 * 4 = 200 * x = > x = 8 days . answer : c
Answer: C