the area oa a rectangle whose length is five more than twice its width is 75 square unit. the length is :- 5 unit OR 10 unit OR 15 unit OR 20 unit ?

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Arun · Answer

Let the width of the rectangle = x units Length = (2 x + 5) units According to the question, Area = x(2x + 5) => 75 = 2x2+5x2x2+5x => 2x2+5x−75=02x2+5x−75=0 => 2x2+15x−10x−75=02x2+15x−10x−75=0 => x(2x+15)-5(2x+15)=0 => (2x+15)(x-5)=0 => x = 5 and −152−152 Width cannot be negative. Width = 5 units Length=2x+5 =2×5+52×5+5=15 units

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the area oa a rectangle whose length is five more than twice its width is 75 square unit. the length is :- 5 unit OR 10 unit OR 15 unit OR 20 unit ?

the area oa a rectangle whose length is five more than twice its width is 75 square unit. the length is :- 5 unit OR 10 unit OR 15 unit OR 20 unit ?

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