Quantitative Aptitude - Arithmetic Ability Questions

If n + n2 + n4 + n8 = 45, then find the value of 'n' which will satisfy the equation.

An aeroplane flying horizontally at a height of 3 Km. above the ground is observed at a certain point on earth to subtend an angle of 60°. After 15 sec flight, its angle of elevation is changed to 30°. The speed of the aeroplane (taking √3 = 1.732) is

In the circle above, chord AB is extended to meet the tangent DE at D. If AB = 5 cm and DE = 6 cm, find the length of BD.

The side BC of ΔABC is produced to D. If ∠ACD = 114° and ∠ABC= (1/2)∠BAC, then what is the value (in degrees) of ∠BAC?

The volume of a hemisphere is 19404 cm3. Find its diameter (in cm).

If the diameter of a circle is 35 cm, then what will be its circumference (in cm)?

In which of the following quadrilaterals opposite angles are supplementary?

The circumference of a circle is equal to the perimeter of an equilateral Δ. If the radius of the circle is 14 cm what is the length of the side of the equilateral Δ?