Quantitative Aptitude - Arithmetic Ability Questions

Of the 3 numbers whose average is 72, the first is 2/7 times the sum of other 2. The first number is

O is the centre of the circle and ∠AOB = 150°, and the shaded portion is x part of the circular region, then x = ?

A hollow hemispherical bowl is made of silver with its outer radius 8 cm and inner radius 4 cm respectively. The bowl is melted to form a solid right circular cone of radius 8 cm. The height of the cone formed is

The angles of depression of two ships from the top of a light house are 60° and 45° towards east. If the ships are 300 m apart, the height of the light house is

The mean of a distribution is 21 and the standard deviation is 7. What is the value of the coefficient variation?

Select the odd number from the given alternatives.

Findout the odd word/letters/number/number pair from the given alternatives.

What is the value of Cot 45° - (1/√3)Cosec 60°?