A fort of 3000 soldiers has provisions for 75 days. After 15 days some of them left and the food was now enough for the same period of 75 days as before. How many of them left?
Choose the correct choice from the following options:
A) 500
B) 550
C) 600
D) 650
E) 700
2000 ---- 50   3000 ---- 60   x ----- 75   x*75 = 3000*60   x=2400   3000   -------   600   Answer: 600
<result>C</result>
A fort of 3000 soldiers has provisions for 75 days. After 15 days some of them left and the food was now enough for the same period of 75 days as before. How many of them left?