A garrison of 2000 men has provisions for 40 days. At the end of 20 days, a reinforcement arrives, and it is now found that the provisions will last only for 10 days more. What is the reinforcement?	Select the correct option
A) 1888
B) 2766
C) 2999
D) 2000
E) 1712
2000 ---- 40   2000 ---- 20   x ----- 10   x*10 = 2000*20   x = 4000   2000   -------   2000   Answer: 2000
<result>D</result>
A garrison of 2000 men has provisions for 40 days. At the end of 20 days, a reinforcement arrives, and it is now found that the provisions will last only for 10 days more. What is the reinforcement?