1.  A group of 1200 persons consisting of captains and soldiers is travelling in a train. For every 15 soldiers there is one captain. The number of captains in the group is ?
A. 70
B. 75
C. 80
D. 85

Answer: Option B

Explanation:

Generally we may commit mistake of dividing 1200/15.

But out of 16 persons there is one captain.

so, it will be 1200/16 = 75