Quantitative Aptitude - Arithmetic Ability Questions

If x = 999, y = 1000, z = 1001, then the value of x3+y3+z3-3xyzx-y+z is

The difference between simple interest on a certain sum at the rate of 6% per annum for 5 years and 6 years is 25.8. What is the sum (in Rs)?

Mehdi can complete a work in 25 hours. If he is joined by Jahnavi who is 50% more efficient, in what time will they together finish the work?

A sells a watch to B and makes a loss of 12%. B makes a profit of 12.5% by selling the watch to C. If A sells the watch to B at the cost of which C purchased it, then the percentage of loss or profit of A will be,

The price of an article is cut by 24%, to restore to its original value, the new price must he increased by ______.

In ∆ABCif the median AD=1/2 BC, then ∠BAC is

At 15% discount the selling price of a microwave oven is Rs 34000, what is the selling price if the discount is 37.5%?

An object travels 23 m in 3 s and then another 15 m in 2 s. What is the average speed of the object?