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.
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.