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Railways PYQCBT 1 2016

RRB NTPC · Question 44

The difference between the length and breadth of a rectangle is 6 m. If its perimeter is 64 m, then its area is: A. 256 sq.m B. 247 sq.m C. 264 sq.m D. 238 sq.m

  1. A

  2. B

  3. D

  4. C

Show answer & explanation

Answer: (B) B

Explanation

Perimeter 64 m means l + b = 32, and l − b = 6. Solving gives l = 19 and b = 13. Area = 19 × 13 = 247 sq. m.