Clive opens a box full of different colored balls.   The box contains 6 blue balls, 4 red balls, 3 times as many green balls as blue ones and twice as many yellow ones as red ones.   How many balls are in the box Clive opens?
How many green balls are there? ** There are 3 times as many green balls as blue balls so green balls = blue balls * 3. Green balls = 6 blue balls * 3 = <<6*3=18>>18 green balls
How many yellow balls are there? ** There are 2 times as many yellow balls as red ones so yellow balls = red balls * 2. Yellow balls = 4 red balls * 2 = <<4*2=8>>8 yellow balls
How many balls are there? ** The total number of all the balls is 6 blue + 4 red + 18 green + 8 yellow: 6+4+18+8 = <<6+4+18+8=36>>36 balls
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