Quantitative Aptitude - Arithmetic Ability Questions

If 3a – (3/a) – 3 = 0, then what is the value of a3 – (1/a3) + 2?

What are the co-ordinates of the centroid of a triangle, whose vertices are A(1, -5), B(4, 0) and C(-2, 2)?

The value of Cot17°Cot73°Cos222° + 1Cot17°Sec268° is

Find the curved surface area (in cm2) of a right circular cone of diameter 28 cm and slant height 12 cm.

The selling price of an article is 8/5th of its cost price. Then the gain percentage is

Find the odd numbers/letters/numbers from the given alternatives.

If Sin θ = 12/13, then what is the value of Cot θ?

The ratio of two numbers is 5 : 6. If their product is 1470, then what is the sum of both the numbers?