please solve with excel. thanks!

9 b. Four machines are placed in a sequence in an assembly line. The first machine requires 24 seconds per unit to do its work. 10 The second machine takes 16 seconds, the third machine 22 seconds, and the fourth machine 18 seconds. 11 What is the design capacity of the machine that takes 18 seconds and the effective capacity of the same machine when placed in this system? 12 Express capacity in parts per hour, ROUNDed to an integer. 13 200 design capacity, parts per hour 14 effective capacity, parts per hour 15