Quantitative Aptitude - Arithmetic Ability Questions

What is the value of sin ­-300°?

The value of tan 315° cot (­ -405° ) is equal to

What is the value of sec -2π/3 ?

In the following question, select the odd word from the given alternatives.

AB is the diameter of a circle with center O and P be a point on its circumference. If ∡POA = 120°, then the value of ∡PBO is

If the angle of elevation of the sun decreases from 45° to 30°, then the length of the shadow of a pillar increases by 60m. The height of the pillar is

A 145 m long train crosses a 655 m long bridge in 36 seconds. What is the speed of the train?

The ratio of the volume of two cylinders is 7 : 3 and the ratio of their heights is 7 : 9. If the area of the base of the second cylinder is 154 sq. cm, then what will be the radius (in cm) of the first cylinder?