Quantitative Aptitude - Arithmetic Ability Questions

Diameter of a car wheel is 21 cm. A car driver moving at the speed of 66 km/hr takes 36 seconds to reach a destination. How many revolutions will the wheel make during the journey?

P does half as much work as Q in 1/3 of the time. If together they take 15 days to complete a work, how many days will P take to do it alone?

A solid brass sphere of radius 2.1 dm is converted into a right circular cylindrical rod of length 7cm. The ratio of total surface areas of the rod to the sphere is

If curved surface area of a cylinder is 616 sq cm and height is 14 cm, find its radius?

What is the value of sin 5π/3?

If sec -5π/4 = x, then the value of x is

The sum of a fraction and 3 times its reciprocal is 37/10. What is the fraction?

The slopes of two lines are 1 and √3. What is the angle between these two lines?