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Railways PYQCBT 1 2016

RRB NTPC · Question 34

If P means ‘÷’ Q means ‘ + ’, R means ‘-‘ and S means ‘×’, then the value of 10 R 192 P 48 S 48 P 96 Q 1 is A. 10 B. 9 C. 8 D. 7

  1. B

  2. C

  3. D

  4. A

Show answer & explanation

Answer: (A) B

Explanation

Replacing the letters gives 10 − 192 ÷ 48 × 48 ÷ 96 + 1. Division and multiplication go left to right first: 192 ÷ 48 = 4, 4 × 48 = 192, 192 ÷ 96 = 2. Then 10 − 2 + 1 = 9.