The length width and height of a room are in the ratio 5:4:2 .if the length is increased by 20% and the width by 25% while the height is reduced by 25% ,what will haplen to the total area of the four walls of the room
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SUM OF RATIO= 5+4+2=11
LENGTH=5/11x100
45.45
WIDTH=4/11x100
36.36
HEIGHT=2/11x100
18.18
LENGTH=5/11x100
45.45
WIDTH=4/11x100
36.36
HEIGHT=2/11x100
18.18
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