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hemant balde Grade:
        

Length of a rectangle is increased by 50% and breadth is decreased by 25% what is the difference in the area

6 years ago

Answers : (2)

SAGAR SINGH - IIT DELHI
879 Points
										

Dear student,


Let length =l


breadth=b


New length=1.5l


new breadth=0.75b


New area 1.5l*0.75b



























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6 years ago
Sudheesh Singanamalla
114 Points
										

let length be l and breadth be b


area = l*b


new length = l + l/2 = 3l /2


new breadth = b - b/4 = 3b/4


new area = 3l/2 * 3b/4 = 9 * l * b / 8 ;


 


difference in area = 9*l*b/8 - l*b


==> (l*b) * (9/8 - 1)


==> (l*b) * 1/8


thefore difference in area = 1/8 * l*b


 


please approve if the answer is correct

6 years ago
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