What change in percentage is made in the area of rectangle by decreasing its length and increasing its breadth by 5%

Asked by  | 2nd Dec, 2012, 04:33: PM

Expert Answer:

let lenth is L and breath is B.
area =LB
 
now length =.95L
breath=1.05 B
therfor area=0.95*1.05LB=.9975LB
therfor change in area=0.0025 LB decrease
percentage change=(0.0025LB/LB)*100=0.25% decrease

Answered by  | 3rd Dec, 2012, 11:01: PM

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