Every 24 additional page of the book adds an additional millimeter to its thickness. This means that additional 48 pages of the book would add millimeter to its thickness and 72 pages would add additional 3 millimeter to its thickness. Therefore, if the book contains 600 pages, the additional millimeters added to the thickness of the book would be
600/24 = 25mm
Since the front and back covers are 5mm thick each, the total thickness of the book would be
