Quantitative Aptitude - Arithmetic Ability Questions

If sin ­-330° = x, then the value of x is

Determine the value of y-1y2 when y4+1y4=34

Find the radius of the circle if the length of its arc is 33 cm whose corresponding central angle is 90° ?

On selling 56 chairs, Mohan earns profit equal to the selling price of 6 chairs. What is the profit percentage?

The average age of 40 students of a class is 16 years. If the average age of 24 students is 15.5 years and that of the 15 students is 16 2⁄3 years, then the age of 40th student is

A can do a work in 24 days and B in 40 days. If they work on it together for 10 days, then what fraction of work is left?

The angles of depression of two ships from the top of a light house are 45° and 30° toward east. If the ships are 200m apart, the height of the light house is (take √3=1.73)

An 80 litre mixture of water and acid contains 20% acid. How much acid should be added to make the acid 60% in the new mixture?