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If the length of rectangle increases by 20 width decreases by 5 percent What will be the net change in area?
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If the length of rectangle increases by 20 width decreases by 5 percen...
If the question is that if the length of rectangle increases by 20% and width decreases by 5% what will be the net change in area then the answer will be:-

SOLUTION:-
let 'l' be the original length of rectangle and 'b' be the original width of rectangle.
Then according to question,
new length =l+20l/100
=1.20l
new width=b-5b/100
=0.95b
therefore new area=1.2l×0.95b
=1.14lb
original area=lb
therefore change in area=+0.14lb( + means the area is
increased)
hence there should be 14%increase in area
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If the length of rectangle increases by 20 width decreases by 5 percent What will be the net change in area?
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