Jerome ate 2 times the amount of Jackson's 10 pizza rolls, so 2*10 = <<2*10=20>>20 pizza rolls
Tyler ate 1.5 times more than Jerome's 20 pizza rolls, so Tyler ate 1.5*20 = <<1.5*20=30>>30 pizza rolls
Tyler ate 30 pizza rolls and Jackson only ate 10 pizza rolls so Tyler ate 30-10 = <<30-10=20>>20 more pizza rolls
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