Quantitative Aptitude - Arithmetic Ability Questions

The simplified value of 3-212-18 - 13 × 27 - 12 x 273 is closest to

Sonam's age after eight years will be half of her father's age. Eight years ago the ratio of their ages was 1 : 3. Find the present age of Sonam's father.

If 5x - ­5(3x ­- 2) < 4x -­ 1 < 2 + 2x, then x can take which of the following values?

The line passing through the point (5,a) and point (4,3) is perpendicular to the line x - 6y = 8. What is the value of 'a'?

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.

One of four words is a class to which the other three belong. Identify the class.

What is the value of Sin 30° + Cos 30°?

What is the reflection of the point (5, -2) in the line x = -1?