Quantitative Aptitude - Arithmetic Ability Questions

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

If the value of √30  is approximately 5.477, then what is the approximate value of 56 ?

Find the value of  x3 - y3, if x - y = 4 and xy = 12.

The list price of an article is Rs. 900. It is available at two successive discounts of 20% and 10% . The selling price of the article is:

When a number is increased by 42, it becomes 121% of itself. What is the number?

A watch is sold at a discount of 62.5%. If the marked price of the watch is Rs 16320, then what is the selling price (in Rs) of the watch?

26% of a number is 65. What is the number?

If 7/8th of 5/4th of a number is 315, then 5/9th of that number is _____