Quantitative Aptitude - Arithmetic Ability Questions

What is the simplest form of (1 + cosA)(cosecA ­ cotA)?

If secA/√(sec2A ­- 1) = x, then value of x is

Find the curved surface area (in cm2) of a right circular cylinder of diameter 28 cm and height 12 cm.

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?

A tap can fill a tank in 50 minutes. If the tank has a leakage which alone is capable of emptying the tank in 2.5 hours, the tank will now be filled in

ΔPQR is right angled at Q. If cotP = 5/12, then what is the value of tanR ?

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:

If the circumference of a circle is 44 cm, then what must be its area (in cm²)?