Quantitative Aptitude - Arithmetic Ability Questions

What is the area (in cm2) of the circumcircle of a triangle whose sides are 6 cm, 8 cm and 10 cm respectively?

If x – (1/x) = 3, then what is the value of (2x4 + 3x3 + 13x2 – 3x + 2) / (3x4 + 3)?

If 5x + 6(3-2x) = 4, then what is the value of x?

The cost price of an article is x. It is marked up by 150%. It is sold at Rs 600 after giving 40% discount. What is x (in Rs)?

Considering two opposite vertices of a square of side ‘a’ as centres, two circular arcs are drawn within the square joining the other two vertices, thus forming two sectors. What is the common area in these two sectors?

At 22% discount the selling price of a refrigerator is Rs 26000, what is the selling price if the discount is 40%?

What is the difference between 0.6 and 0.6%?

In the given figure, AB = 30 cm and CD = 24 cm. What is the value (in cm) of MN?