Meso types 15 pages / 5 minutes = <<15/5=3>>3 page per minute.
Tyler types 15 pages / 3 minutes = <<15/3=5>>5 pages per minute.
Together they can type 3 + 5 = <<3+5=8>>8 pages per minute.
Working together, it would take them 40 pages / 8 pages per minute = <<40/8=5>>5 minutes
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