<human>:  In a big box, there are marbles in 4 colors. Inside, there are 20 red marbles. There are three times more green marbles than red. Yellow marbles make up 20% of the green marbles. How many marbles are of a different color if the total of all marbles in the box is three times more than the number of green marbles?
<bot>: How many green marbles are there? ** There are 3 * 20 = <<3*20=60>>60 green marbles.
How many yellow marbles are there? ** There are 60 * 20/100 = <<60*20/100=12>>12 yellow marbles
How many marbles are there in total? ** In total there are 3 * 60 = <<3*60=180>>180 marbles.
How many marbles are of a different color if the total of all marbles in the box is three times more than the number of green marbles? ** That leaves 180 - 20 - 60 - 12 = <<180-20-60-12=88>>88 marbles of another color in the box.
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