Quantitative Aptitude - Arithmetic Ability Questions

A chord of a circle is equal to its radius. A tangent is drawn to the circle at an extremity of the chord. The angle between the tangent and the chord is

The variance of a set of data is 121. Then the standard deviation of the data is

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

Sin6A + Cos6A - 1 is equal to

A circle has points P, Q, R on a circle in such a way that angle PQR is 60 deg and angle QRP is 80 deg. Calculate the angle subtended by an arc QR at the centre.

The shadow of a tower when the angle of elevation of the sun is 45°, is found to be 10 m longer than when it was 60° . The height of the tower is

A prism has a regular hexagonal base with side 6 cm. If the total surface area of prism is 216√3 cm2, then what is the height (in cm) of prism?

ΔPQR is right angled at Q. If cosecP = 25/24, then what is the value of cotR ?