NextMockSearch exams, e.g. SSC CGL, UPPSC, Lekhpal
Railways PYQCBT 1 2016

RRB NTPC · Question 57

Find the LCM of 0.63, 10.5, 2.1, 4.20.

  1. 63

  2. 0.63

  3. 6.30

  4. 6300

Show answer & explanation

Answer: (A) 63

Explanation

Write the numbers over 100: 63/100, 1050/100, 210/100 and 420/100. LCM(63, 1050, 210, 420) = 6300, so the LCM of the decimals = 6300/100 = 63.