Quantitative Aptitude - Arithmetic Ability Questions

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

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

If a is positive and a2+1a2 = 7, then a3 + 1a3 = ?

If (tanA ­- tanB)/(1 + tanAtanB) = x, then the value of x is

What is the area (in sq cm) of a regular hexagon of side 9 cm?

What is the length of the side of an equilateral triangle, if its area is 36√3 sq cm?

A solid right circular cone of radius 4 cm and height 7 cm is put inside a cylindrical vessel of radius 5 cm and height 8 cm. How much water in cubic cm will be required to fill the cylindrical vessel completely?

Find the odd one out.