Question

The difference of a rectangle area if the leanth is 5%off and the width is 5% extra

Answer 1

-5+5-25/100 =-1/4

=-2.5

Answer 2

Answer:

0.25%

Step-by-step explanation:

original area = l × b = lb

new length = l - 5% of l = 0.95l

new width = b + 5% of b. = 1.05b

new area = 0.9975lb

difference = lb - 0.9975lb

= 0.0025 lb

difference% = 0.0025lb/lb * 100 = 0.25%

2nd method,

difference = 5 - 5 + (5)×(5)/100

= 5 - 5 + 0.25 = 0.25%