Quantitative Aptitude - Arithmetic Ability Questions

What is the angle between the two hands of a clock when the time shown by the clock is 8 p.m.?(in degrees)

An article was sold at Rs. 950 allowing 5% discount on the marked price. The marked price of the article is

An equilateral triangle ABC is inscribed in a circle of radius 20√3.
What is the length of the side of the triangle?

If 1-aa3+9 = 19 - a1-a3, then what is the value of a?

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

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

If a+b+c = 0, then (a^3 + b^3 + c^3)^2 = ?

When x2+ax+b is divided by (x-1), the remainder is 15 and when x2+bx+a is divided by (x+1), the remainder is -1, then the value of a2+b2 is