Quantitative Aptitude - Arithmetic Ability Questions

Solve : (x + 2y) (2x - y)

If 12x2 - ax + 7 = ax2 + 9x + 3 has only one (repeated) solution, then the positive integral solution of a is

If the 1st and the 3rd term of an arithmetic progression are -10 and -4, what is the 12th term?

For real a, b and c if a2 + b2 + c2 = ab + bc + ca, then find the value of a+b+c2.

If the length of the shadow of a vertical pole on the horizontal ground is √3 times its height, then the angle of elevation

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.

The length of two parallel sides of a trapezium are 18 m and 24 m. If its height is 12 m, then what is the area (in sq.m) of the trapezium?

How many of the factors of 256 are perfect squares?