Question

What happens to the area of rectangle if length is decreased by 20 percent and while width is increased by 50%?


increased by 20%

increased by 50%

decreased by 20%

decreased by 80%

Answer 1

Answer:

increase by 20%

Step-by-step explanation:

consider length l

consider width b

area = lb

it's a = 1l × 1b

now length decrease by 20% means 0.8

width increase by 50% means 1.5

a = 0.8l ×1.5b

a= 1.2lb means its increase by 20%

if you didnt got it , 1 is 100% 0.8 is decrease in 20% and 1 .5 is increase in 50% also 1.2 is increase in 20%

Answer 2

Answer:

it will increase by 20% hope you like it