Discussion of Question with ID = 078 under Areas

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The difference between the length and breadth of a rectangle is 68 m. What is the area if the perimeter is 168 meters?


608 sq. meters.


610 sq. meters.


606 sq. meters.


612 sq. meters.

Ans: a

If L and B are the length and breadth of the rectangle, then L - B = 68 and 2(L + B) = 168. Solving, we get L = 76 and B = 8, so the area is 76 × 8 = 608 sq. m. TIP: Sometimes long multiplications can be avoided by looking at the units place of the given options.

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