Quantitative Aptitude - Arithmetic Ability Questions

If 3n = 2187, then the value of n is:

The length of the diagonal of a square is 12 cm. Find its area (in cm2).

If x = 6+26, then what is the value of x-1 + 1x-1 ?

What is the value of (2/√3 +tan45° ) ?

A man travels 800 km in partly by rail and partly by steamer. He spends 7 hours more time on steamer. If the velocity of the steamer is 20 km/hr and the velocity of rail is 55 km/hr, how much distance does he cover by steamer?

A missile travels at 1260 km/h. How many metres does it travel in one second?

Find out the odd word/letters/number/number pair from the given alternatives.

The circumference of a circle is equal to the perimeter of an equilateral triangle. If the radius of the circle is 7 cm what is the length of the side of the equilateral triangle?