Quantitative Aptitude - Arithmetic Ability Questions

The least value of tan2x + cot2x is

If cot(A/2) = x, then the value of x is

A missile travels at 1116 km/h. How many metres does it travel in one second?

In a class of 66 students there are 33 girls. The average weight of these girls is 61 Kg and average weight of the full class is 66 kgs. What is the average weight of the boys of the class?

Ganesh invested an amount of Rs x in a fixed deposit scheme offering 5% per annum for 1st year and 15% per annum for 2nd year and received an amount of Rs 9660 after two years. What is the value of x (in Rs)?

∆ABC is right angled at B. BD is an altitude. AD = 4 cm and DC = 9 cm. What is the value of BD (in cm)?

P(4,2) and R(-2,0) are vertices of a rhombus PQRS. What is the equation of diagonal QS.

There is a 4% increase in volume when a liquid freezes to its solid state. The percentage decrease when solid melts to liquid again, is