Q1 of 46 Page 175

If the area of a rectangle whose length is twice its breadth is 800 m2, then the length and breadth of the rectangle are:

Let, breadth = x m. and breadth = 2x


According to problem,


⇒ x × 2x = 800


⇒ 2x2 = 800


⇒ x2 = 400


⇒ x = 20


∴ Breadth = x = 20 m and Length = 2x = 2 × 20 = 40 m

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