Quantitative Aptitude - Arithmetic Ability Questions

Vikash purchased 5 bananas for Rs.4 and sold 4 bananas for Rs.5. Calculate his % profit?

Find the 4th proportional to 9, 17 and 27.

If the standard deviation of a population is 6.5, what would be the population variance?

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

On a certain principal if the simple interest for two years is Rs 2800 and compound interest for the two years is Rs 2996, what is the rate of Interest?

In ΔABC, AC = BC and ∠ABC = 50°, the side BC is produced to D so that BC = CD then the value of ∠BAD is

What is the value of √[(1 ­- cosA)/(1 + cosA)]?

The solution set of 4x - 3y = 47 and 3x + y = 32 is