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Eduncle posted an MCQ
December 23, 2019 • 22:54 pm 0 points
  • CSIR NET
  • Physical Sciences

Which is the odd one out based on a divisibility test ?
    154, 286, 363, 474, 572, 682

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    Eduncle Best Answer

    To find out the divisibility test we will take the LCM of all these
    (1)    474 = 2 × 3 × 79
    (2)    572 = 2 × 2 × 11 × 13
    (3)    682 = 2 × 11 × 31
    (4)    154 = 2 × 7 × 11
    All the numbers are divisible by 2 and 3 is there is 474 and most common here is 11. Factor 11 is in 572, 682, 154 but not in 474 so it should be 474
    So option (1) is correct.

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