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Railways PYQCBT 2 2017

RRB NTPC · Question 6

If '+' means '÷', '-' means '×' , '÷' means '+' and '×' means '-' then 36 × 12 + 4 ÷ 6 + 2 - 3 = ?

  1. 1

  2. 39

  3. 40

  4. 42

Show answer & explanation

Answer: (D) 42

Explanation

Replacing the signs: 36 − 12 ÷ 4 + 6 ÷ 2 × 3. By BODMAS: 12 ÷ 4 = 3 and 6 ÷ 2 × 3 = 9, so the value is 36 − 3 + 9 = 42.