A garrison of 2000 men has provisions for 54 days. At the end of 18 days, a reinforcement arrives, and it is now found that the provisions will last only for 20 days more. What is the reinforcement?  Choose the correct choice from the following
A) 1977  B) 1600  C) 1979  D) 1900  E) 1278
2000 ---- 54   2000 ---- 36   x ----- 20   x*20 = 2000*36   x = 3600   2000   -------   1600   Answer: 1600
<result>B</result>
A garrison of 2000 men has provisions for 54 days. At the end of 18 days, a reinforcement arrives, and it is now found that the provisions will last only for 20 days more. What is the reinforcement?