Quantitative Aptitude - Arithmetic Ability Questions

At what rate of compound interest (in %) per annum will a sum of Rs. 15,000 become Rs. 18,150 in 2 years?

If Sec θ = 13/12, then Cot θ = ?

If 4x + 1x = 5, (x≠0), then the value of 5x4x2+10x+1 is

What is the value of 9991 x 10009?

The average weight of P, Q and R is 47 kg. If the average weight of P and Q be 32.5 kg and that of Q and R be 48.5 kg, then what is the weight of Q (in kgs)?

A sum becomes Rs 10000 in 10 years on simple interest at the rate of 10% per annum. What is the total interest (in Rs) of the 10 years?

If Mr. Raghav taught a total of 500 hours, then what is the difference in number of hours of teaching algebra and modern Maths?

a and b are irrational numbers such that a+b = q is a rational number; then a­b is