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Posted by on Monday, June 27, 2011 at 12:35pm.

if there are 30 students in the classroom,and the ratio for boys to girls is 4:6,how many boys and girls are in the class

  • geometry - , Monday, June 27, 2011 at 12:38pm

    Let x represent the boys in the classroom. Cross multiply and solve for x.

    4/10 = x/30
    10x = 120
    x = 12

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