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Railways PYQCBT 1 2016

RRB NTPC · Question 41

If the mathematical operator ‘÷’ means ‘×’, ‘+’ means ‘-‘, ‘×’ means ‘+’ and ‘-‘ means ‘÷’, then 24 + 48 – 12 × 4 ÷ 2 = ? A. 6 B. -6 C. 16 D. 28

  1. B

  2. A

  3. C

  4. D

Show answer & explanation

Answer: (D) D

Explanation

With ÷ → ×, + → −, × → + and − → ÷, the expression 24 + 48 − 12 × 4 ÷ 2 becomes 24 − 48 ÷ 12 + 4 × 2. Division and multiplication first: 4 and 8. Then 24 − 4 + 8 = 28.