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Posted by on Saturday, December 19, 2009 at 5:26am.

the boys of a school can be arranged in 12,15 and 18 equal rows and also into a solid a square.what is the leat number of boys that the school can have ? (hint find the lcm)

  • math - , Saturday, December 19, 2009 at 5:41am

    The hint really gives you the answer.
    12 = 3*2*2
    15 = 3*5
    18=3*3*2
    so least common multiple is 3*3*5*2*2 = 180

    12 rows of 15
    15 rows of 12
    10 rows of 18

  • math - , Wednesday, April 27, 2011 at 12:33pm

    900

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