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Railways PYQCBT 2 2017

RRB NTPC · Question 107

The greatest four digit number which is exactly divisible by 12, 15, 20 and 54 is:

  1. 9990

  2. 9346

  3. 9828

  4. 9720

Show answer & explanation

Answer: (D) 9720

Explanation

LCM(12, 15, 20, 54) = 540. The largest multiple of 540 below 10,000 is 540 × 18 = 9720.