A group of 1600 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?

Select the set in which the number are related in the same way as are the number of the following set.
( 11, 16, 20)

Mrs. and Mr. Gopal have 3 daughters. Each daughter also has a brother. So how many members are there in this family?

Rahul’s age is three times the age of Sumit. If Rahul is 15 years old presently, determine the age (in years) of Sumit after 12 years. 

If 25 A 9 B 3=75 and 15 A 6 B 2=45, then 16 A 8 B 2=?

In the following questions select the number which can be placed at the sign of question mark (?) from the given alternatives.

In the following question find out the missing number?

In the following question find out the missing number?