If the length of a rectangle is increased by 120% and its width is decreased by 20%, what happens to the area of the rectangle?
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let length be 'x' and width be 'y'
so area of rectangle = xy
( ACCORDING TO THE QUESTION )
length = x + 120/100
width = y - 20/100
so, new area becomes,
= x+120/100 × y - 20/100
= (x + 6/5) × (y - 1/5)
= xy - 1/5x + 6/5y - 6/25
FRIEND, I Hope This Will Help You .
so area of rectangle = xy
( ACCORDING TO THE QUESTION )
length = x + 120/100
width = y - 20/100
so, new area becomes,
= x+120/100 × y - 20/100
= (x + 6/5) × (y - 1/5)
= xy - 1/5x + 6/5y - 6/25
FRIEND, I Hope This Will Help You .
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