Quantitative Aptitude - Arithmetic Ability Questions

If tangents PA and PB from a point P to a circle with centre O are inclined to each other at an angle of 110 deg then the angle POA is

In the following question, four groups of three numbers are given. In each group the second and third number are related to the first number by a Logic/Rule/Relation. Three are similar on basis of same Logic/Rule/Relation. Select the odd one out from the given alternatives.

0.196 + 1.96 + 19.6 + 196 = ?

If the in radius of the equilateral triangle is 8 cm then what is the value of circum radius (in cm) of the triangle?

Assuming that the numbers in each of the following figures follow a similar pattern, select the option that can replace the question mark in figure B.

If X + Y = 19 and X - Y = 7, then XY = ?

125 - 73 + 48 - 137 + 99 = ?

The perimeter of two similar triangles is 36 units and 48 units. Find the ratio of their corresponding areas.