Quantitative Aptitude - Arithmetic Ability Questions

Dodecahedron has 30 edges. How many vertices does it have?

If sin 30° + cos 45° = X, then the value of X.

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

If 5x ­- 3 ≥ 3 + x/2 and 4x -­ 2 ≤ 6 + x; then x can take which of the following values?

The rate of discount on an article whose marked price is Rs. 170 and selling price is Rs. 130?

The perimeter and the breadth of a rectangle are 68 cm and 10 cm respectively. Calculate the length of its diagonal (in cm).

If the lengths of the two parallel sides of a trapezium are 4 cm and 6 cm and its area is 25 cm². Find the distance between its parallel sides (in cm).

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