Quantitative Aptitude - Arithmetic Ability Questions

If the zeroes of the polynomial x2 - ax + b are 3 and 4, then 'a' and 'b' are respectively equal to

If a+b+c=15 and 1a+1b+1c=71abc, then the a3+b3+c3-3abc is

If cost price of 5 cars is equal to selling price of 4 cars. Find the percentage of profit or loss?

A and B together can do a piece of work in 36 days, B and C together can do it in 24 days. A and C together can do it in 18 days. The three working together can finish the work in

An equilateral triangle ABC is inscribed in a circle of radius 20√3.
The centroid of the triangle ABC is at a distance d from the vertex A. What is d equal to ?

A product was sold foe Rs. 4,500 at a profit of 12.5%. What was the amount of profit?

The sum of 2xy(3x + 4y - 5z) and 5yz(2x - 3y) is

54% of 4000 is