The difference between the length and breadth of a rectangle is 23 m. If its perimeter is 206 m, then its area is : Choose one:
A) 1520 m2  B) 2420 m2  C) 2480 m2  D) 2520 m2  E) None of these
Solution   We have : (l - b) = 23 and 2 (l + b) = 206 or (l + b) = 103.   Solving the two equations, we get, l = 63 and b = 40.   ∴ Area = (l × b) = (63 × 40) m2 = 2520 m2. Answer 2520 m2
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The difference between the length and breadth of a rectangle is 23 m. If its perimeter is 206 m, then its area is :