Quantitative Aptitude - Arithmetic Ability Questions

What is the value of (cot30°+ 2/√3) ?

Arrange them in ascending order 64, 33 and 43

The price of an article is discounted by 25%, to restore to its original value, the new price must be increased by

Mahmood can do a piece of work in 40 hours. If he is joined by Janaki who is 50% more efficient, in what time will they together finish the work?

The mean of 100 observations was calculated as 40. It was found later on that one of the observations was misread as 83 instead of 53. The correct mean is:

The sum of two angles of a triangle is 116o and their difference is 24o . The measure of smallest angle of the triangle is

The ten's digit of a 2­digit number is greater than the units digit by 4. If we subtract 36 from the number, the new number obtained is a number formed by interchange of the digits. Find the number.

Curved surface area of a cylinder is 1232 sq cm. If circumference of its base is 154 cm, then what will be the height of the cylinder? (Take π = 22/7)