Quantitative Aptitude - Arithmetic Ability Questions

A person invested a total sum of Rs 7900 in three different schemes of simple interest at 3%, 5% and 8% per annum. At the end of one year he got same interest in all three schemes. What is the money (in Rs) invested at 3%?

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

The population of a town is 200000. It increases annually at the rate of 10%. What will be the population after 2 years?

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".

A thief is stopped by a policeman from a distance of 350 metres. When the policeman starts the chase, the thief also starts running. Assuming the speed of the thief as 5 km/h and that of the policeman as 7 km/h, how far the thief would have run, before he is over- taken?

Rs. 750 invested for 3 months gave an interest of Rs. 18. What was the simple rate of interest per annum?

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)?

(61 + 62 + 63 + ......... +110) = ?