If cost of an object is increased by 40% and thendecreased by 20%. Find the % change in cost.

The length of a rectangle is increased by 20% and width is decreased by 20%. Find the change percentage in area.

If the length of a rectangle is increased by 40%, and the breadth is decreased by 20%. then the area of the rectangle increases by x%. Then the value of x is:

A9s salary was increased by 40% and then decreased by 20%. On the whole A's salary is increased by

Total cost of 40 chairs is Rs 1600. If cost of each chair increases by 20% and number of chairs decrease by 10% , then what will be the total cost (in Rs) of chairs?

The raw material and manufacturing cost formed individually 70% and 30% of the total cost and the profit percentage is 14.28% of the raw material. If the cost of raw material increase by 20% and the cost of manufacturing is increased by 40% and the selling price is increased by 80%, then the new profit percentage is :

The selling price of an article is 84% of its cost price. If the cost price is increased by 20% and the selling price is increased by 25%, what is the percentage increase/decrease in the loss with respect to the earlier loss?