Quantitative Aptitude - Arithmetic Ability Questions

Deepinder lent Rs 8200 to Jairaj for 16 years and Rs 4900 to Karna for 15 years on simple interest at the same rate of interest and received Rs 19446.5 in all from both of them as interest. The rate of interest per annum is:

Convert decimal number 101 to binary.

What is the least number that should be added to the product 11 x 12 x 13 x 14 to make it a perfect square?

John is 15 years younger than Jill, 12 years ago, Jill's age was 1.5 times that of John. Jill is now ___ years old.

The difference between the largest and the smallest angles of a triangle whose angles are in the ratio of 5:3:10 is

Of the 3 numbers whose average is 112, the first is 3/13 times the sum of other 2. The first number is _____.

A and B can complete a task in 20 days, B and C can complete it in 30 days while C and A can do the same task together in 24 days. How many days will each of and C take to complete the task individually? 

The point R(a,b) is first reflected in origin to R1 and R1 is reflected in x-axis to (-3,4). The co-ordinates of point R are