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Railways PYQCBT 1 2016

RRB NTPC · Question 14

A wire is in the shape of a rectangle. Its length is 42.7 m and breadth is 21.8 m. If the same wire is re-bent in the shape of a square, what will be the measure of the side of the square? A. 16.125 B. 32.25 C. 11.35 D. 22.70

  1. C

  2. D

  3. A

  4. B

Show answer & explanation

Answer: (D) B

Explanation

The wire's length equals the rectangle's perimeter: 2 × (42.7 + 21.8) = 2 × 64.5 = 129 m. Bent into a square, each side = 129/4 = 32.25 m.