Quantitative Aptitude - Arithmetic Ability Questions

A quadrilateral is inscribed in a circle. If the opposite angles of the quadrilateral are equal and length of its adjacent sides are 6 cm and 8 cm, what is the area of the circle?

Simplify: (213 x 213 + 187 x 187)

Akash is 3 times as good a workman as Baldev and therefore is able to finish a job in 40 days less than Baldev. Working together, they can finish it in _____.

If xy = -30 and x2 + y2 = 61, then find the value of (x + y).

cot2A + cos2A is equal to

A person crosses a 900 metres wide road in 120 seconds. What is his speed (in km/hr)?

The sum of the ages of father and a son presently is 70 years. After 10 years, the son's age is exactly half that of the father. What are their ages now?

Value of (cos 53° - sin 37°) is