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Railways PYQCBT 1 2016

RRB NTPC · Question 16

Interchanging which two signs will make the following equation correct? 15 + 3 × 9 – 4 ÷ 16 = 57 A. – and + B. – and ÷ C. – and × D. + and ÷

  1. A

  2. D

  3. B

  4. C

Show answer & explanation

Answer: (B) D

Explanation

Interchanging + and ÷ gives 15 ÷ 3 × 9 − 4 + 16. Working it out: 15 ÷ 3 = 5, 5 × 9 = 45, then 45 − 4 + 16 = 57, which matches.