Quantitative Aptitude - Arithmetic Ability Questions

If  tan2θ + cot2θ = 2, then what is the value of 2sec θ cosec θ?

A sum amounts to Rs 7727.104 at the rate of 12% per annum compounded annually after three years. What is the value of principal (in Rs)?

Dev lent Rs. 8000 to Jairam for 17 years and Rs. 4700 to Karnik for 16 years on simple interest at the same rate of interest and received Rs. 21120 in all from both of them as interest. The rate of interest per annum is:

The profit earned by a shopkeeper by selling a bucket at a gain of 8% is Rs 28 more than when he sells it at a loss of 8%. The cost price (in Rupees) of the bucket is

If the present ages of a father and his son are 48 years and 28.8 years old respectively, then the father can say to his son, "I was ......... of your present age when you were born".

Value of (4a2+ 12ab + 9b2)/(2a + 3b) is

The value of cosec260 + sec260 cot260 + tan230 will be

The third proportional of two numbers 7 and 21 is