Quantitative Aptitude - Arithmetic Ability Questions

In figure 'O' is the centre of a circle. The area of sector OAPB is 5/18. of the area of the circle find 'x'.

Which of the following quadratic equations has equal roots?

ΔPQR is right angled at Q. If m∠R = 45°, then find the value of (tanP - 1/2).

In the following question, four number pairs are given. The number on left side of (–) is related to the number of the right side of (–) with some Logic/Rule/Relation. Three are similar on basis of same Logic/Rule/Relation. Select the odd one out from the given alternatives.

Rearrange the jumbled up letters to form a meaningful word and find the odd one out.

If the diameter of a hemisphere is 21 cm, then what is the volume (in cub.cm) of hemisphere?

An inverted conical shaped vessel is filled with water to its brim. The height of the vessel is 8 cm and radius of the open end is 5 cm . When a few solid spherical metallic balls each of radius 1⁄2 cm are dropped in the vessel , 25% water is overflowed. The number of balls is:

The sum of the digits of a 2-digit number is 8. If we add 36 to the number, the new number obtained is a number formed by interchange of the digits. What is the number?