Quantitative Aptitude - Arithmetic Ability Questions

If in-radius of an equilateral triangle is 3 cm. Calculate the perimeter (in m) of the equilateral triangle.

Find the approximate simple interest on Rs. 2000 from March 9, 2010 to May 21, 2010 at 8.25% per annum.

If n + n2 + n4 + n8 = 45, then find the value of 'n' which will satisfy the equation.

A man, rowing a boat, covers a distance of 16 km in two hours downstream. He covers half the distance in same amount of time when rowing upstream. Calculate the speed of the stream.

If X + 2Y = 27 and X - 2Y = -1, find the value of Y.

The sum of the lengths of the edges of a cube is equal to four times the perimeter of a square. If a quarter of the numerical value of the volume of the cube is equal to the numerical value of the area of the square, then the length of one side of the square is

How much is the maximum % discount that sheela can offer to her customer on her Marked Price so that she sells her product at no profit or loss, if she had already marked her product by 25% more than the cost price?

If selling price of 39 articles is equal to the cost price of 42 articles, then what will be the profit percentage?