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:

Clearly, out of every 16 persons, there is one captain.
So, number of captains = 1200 / 16 = 75.