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Railways PYQCBT 1 2016

RRB NTPC · Question 51

If ‘W’ means ‘x’, ‘X’ means ‘-’, ‘Y’ means ‘+’ and ‘Z’ means ‘÷’, then 28 Z 7 W 8 X 6 Y 4 = ?

  1. 30

  2. 3/2

  3. 32

  4. 34

Show answer & explanation

Answer: (A) 30

Explanation

Replacing the letters, 28 Z 7 W 8 X 6 Y 4 becomes 28 ÷ 7 × 8 − 6 + 4. Division and multiplication first: 28 ÷ 7 = 4 and 4 × 8 = 32. Then 32 − 6 + 4 = 30.