Quantitative Aptitude - Arithmetic Ability Questions

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

If x stands for addition, / stands for subtraction, + stands for multiplication and - stands for division, then what is the value of 20 x 8 / 8 - 4 + 2 ?

How much quantity (in kg) of wheat costing Rs 84 per kg must be mixed with 81 kg of wheat costing Rs 60 per kg so that on selling the mixture at Rs 75.9 per kg, there is a gain of 15%?

If 1/4th of the wall is painted blue, 1/2 is painted yellow and remaining 3 m is painted white, what is the length of the wall?

The perimeter of a triangle is 28 cm. If the length is 5/2 times its breadth, find the length and breadth of the triangle.

If 2cos2A - 1 = x, then the value of x is

What is the equation of the line passing through the point (1,3) and making an angle of -45° with the positive x-axis?

 What is the value of (cosec45 + √3/2) ?