Question

If the length of a rectangle is increased by 25%and the width is decreased by 20%, then the area of the rectangle is ? Select one: a. Increased by 5% b. Unchanged c. Decreased by 5% d. Increased by 10%

Answer 1

Let length be 10

And breadth be 10

Area 100

Now length is increased by 20%

New length 12

And breadth is decreased by 10%

New breadth is 9

New area is 12*9=108

Change in area 108-100= 8

So overall area increases by 8%