Campus Recruitment Non-Tech Quiz- 28

If 3 years ago the ratio between the ages of A and B was 6 : 7 and the sum of their ages at present is 58 years, what is the ratio of their present ages?

What will be the remainder, if

A boat covers 42 km upstream and 60 km downstream in 9 hours, while it covers 28 km upstream and 24 km downstream in 5 hours. Find the speed (in km/hr) of the boat in still waters.

Average age of husband and wife at the time of their marriage was 28 years. Two year after their marriage a baby was born. Now their present average age including child is 24 years. How many year ago they got married?

The average of three numbers a, b and c is 2 more than c. The average of a and b is 48. If d is 10 less than c, then the average of c and d is: