I COULD NOT FIGURE OUT, NEED HELP ASAP

A 14-station transfer line has been logged for 2400min to identify type of downtime occurrence, how many occurrences, and time lost. The results are presented in the table below. The ideal cycle time for the line is 0.50min, including transfer time between stations. Determine (a) how many parts were produced during the 2400min, (b) line uptime efficiency, (c) average actual production rate per hour, and (d) frequency p associated with transfer system failures. Solution: (a) Number of parts =3100pc (b) E=64.6% (c) Rp=77.5 pc/hr (d) Transfer system failures: p=0.008065