Quantitative Aptitude - Arithmetic Ability Questions

A chord of length 60 cm is at a distance of 16 cm from the centre of a circle. What is the radius (in cm) of the circle?

The height and the total surface area of a right circular cylinder are 4 cm and 8π sq.cm. respectively. The radius of the base of cylinder is

How many natural numbers between 15 and 85 are divisible by 7?

A man buys 10 oranges for Rs. 3 and sells 8 for Rs. 3. Calculate his gain percent.

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

Compute : 4082 / 157 - 23

If x - √x = 20; Find the value of √x.

If 1/√(1 + cot2A) = x, then value of x is