Quantitative Aptitude - Arithmetic Ability Questions

Simple interest on a certain sum of money for 3 years at 8% per annum is half the compound interest on Rs 1200 for 2 years at 10% per annum. The sum placed on simple interest is

The mean of distribution is 11 and the standard deviation is 5. What is the value of the coefficient variation?

The mean of the data 2, 9, 9, 3, 6, 9, 4 is

select the odd word/letters/number/number pair from the given alternatives.

If (-1/2) * ( x - 5) + 3 = -5/2, then what is the value of x?

At what point does the line 3x + 2y = -12 intercept the Y-axis?

Find a two digit number which is exactly three times the product of its digits?

A = (x8 – 1)/(x4 + 1) and B = (y4 – 1)/(y2 + 1). If x = 2 and y = 9, then what is the value ofA2 + 2AB + AB2?