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Railways PYQCBT 1 2020

RRB NTPC · Question 33

The value of \(\sqrt {72 \times 18} + \sqrt {0.04} + \sqrt {0.64} \) is:

  1. 36

  2. 24

  3. 12

  4. 37

Show answer & explanation

Answer: (D) 37

Explanation

√(72 × 18) = √1296 = 36, √0.04 = 0.2 and √0.64 = 0.8. Sum = 36 + 0.2 + 0.8 = 37.