Quantitative Aptitude - Arithmetic Ability Questions

P does half as much work as Q in 1/3 of the time. If together they take 15 days to complete a work, how many days will P take to do it alone?

A sum of Rs. 3000 amounts to Rs. 6000 in two years at compound interest. The interest for four years is

If 9/4th of 7/2 of a number is 126, then 7/2th of that number is _____.

If P = 5X and Q = X, then P is how much percentage more than Q?

The difference between simple and compound interests compounded annually on a certain sum of money for 2 years at 12% per annum is Rs 900. What is the value of given sum (in Rs)?

If the value 5 = 2.236,then calculate the value of 405 - 1280-125

The value of  (0.3)2/100=?

If 12x = 192- 112, what is the value of x?