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Railways PYQCBT 1 2016

RRB NTPC · Question 27

Find the cost in rupees for carpeting a room 65 dm × 30 dm at Rs. 45. Per sq.m A. 877.50 B. 87750 C. 87.75 D. 8775

  1. B

  2. A

  3. C

  4. D

Show answer & explanation

Answer: (B) A

Explanation

Convert decimetres to metres: 65 dm = 6.5 m and 30 dm = 3 m. Area = 6.5 × 3 = 19.5 sq. m. Cost = 19.5 × 45 = Rs 877.50.