1.

The length of a rectangle is twice that of its breadth. If the length of the rectangle is increasedby 20% and its breadth is decreased by 20%, determine the percentage change, if any, in its perimeter.​

Answer»

ANSWER:

no change

Step-by-step EXPLANATION:

l=2x

b=x

p=2(l+b)

p=2(2x+x)

=2(3x)

=6x

l=2x+20% of x

b=x-20% of x

l=2x+x/5

b=x-x/5

p=2(2x+x/5 + x -x/5)

=2(3x)

=6x



Discussion

No Comment Found

Related InterviewSolutions