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the area of rectangle gets reduced by a square units if its length is reduced by 5 units and breadth is increased by 3 units if we increase the length by 3 minutes and the breadth by 2 units the area increased by 67 square units find the dimensions of the rectangle cross multiplication |
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Answer» Answer: length is -202 and breadth is 155 Step-by-step EXPLANATION: let the length be X and breadth be y area=l*b=XY (x-5)(y+3)=xy-1 xy+3x-5y-15=xy-1 3x-5y=14 (X+3)(y+2)=XY+67 xy+2x+3y+6=XY+67 2x+3y=61 3x-5y=14 (*2) 2x+3y=61 (*3) 6x-10y=28 6x-9y=183 -y=-155 y=155 2x+3y=61 2x+465=61 2x=-404 X=-202 |
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