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Railways PYQCBT 1 2020

RRB NTPC · Question 19

If '+' = '÷', '×' = '+', '-' = '×' and '÷' = '-', then which of the following equations is correct?

  1. 36 - 6 + 3 × 5 ÷ 3 = 74

  2. 36 × 6 + 7 ÷ 2 = 20

  3. 36 ÷ 6 + 3 × 5 - 3 = 45

  4. 36 + 6 - 3 × 7 ÷ 3 = 24

Show answer & explanation

Answer: (A) 36 - 6 + 3 × 5 ÷ 3 = 74

Explanation

Decoding option 1: 36 × 6 ÷ 3 + 5 − 3 = 72 + 2 = 74, which is correct. For example option 4 becomes 36 ÷ 6 × 3 + 7 − 3 = 22, not 24.