Question

the length and breadthl of rectangle is 80m a nd 40m.if the length is increased by 5% and breadth is decreased by 5%.then what will be the difference in perimeter

Answer 1

Answer:

Difference in perimeter = 4

Step-by-step explanation:

Earlier Perimeter = 2 * (80+40) = 240

New Length = 80*(1.05)= 84

New Breadth = 40*(.95) = 38

New Perimeter = 2*(84+38)= 244

Difference in perimeter = 244-240 = 4

Answer 2

Answer:

4

Step-by-step explanation:

earlier perimeter = 2×(80+40) = 240

length=80×1.05=84

breadth=40×0.95=38

new perimeter=2×(84+38)=24

difference between perimeter =244-240=4