In both 5-pin and 10-pin bowling, the pins are arranged in a specific pattern. In 10-pin bowling, the arrangement consists of four rows, with the first row having one pin, the second row having two pins, the third row with three pins, and finally, the fourth row with four pins. In 5-pin bowling, there are only three rows, with the first row having one pin, the second row having two pins, and the third row with two pins.