please explain how to get takt time for b and the seconds

Station Tasks Processing Time (seconds) 1. Heat-stake lens to bezel 2. Inspect bezel 3. Clean switch holes 4. Install set switch in bezel 14 26 10 18 A. Preparation 68 Total time for A 5. Check switch travel 6. Clean inside bezel 7. Install module in bezel Total time for B B. Preparation 23 12 25 60 20 20 22 8 C. Battery installation D. Brand installation 8. Install battery clip on module 9. Heat-stake battery clip on module 10. Install 2 batteries in module 11. Check switch Total time for C 12. Install band 13. Inspect band Total time for D 14. Cosmetic inspection 15. Final test Total time for E 16. Place watch and cuff in display box 17. Place cover in display box base 18. Place owner's manual, box into tub Total time for F 70 45 13 58 4 71 75 E. Packaging preparation 20 14 30 F. Watch packaging 64 Workers get paid $10 per hour. You can ignore any idle time of workers resulting from the beginning or the end of the day. Instructions: Round "target manpower" to 2 decimal places and capacity of the process" to 1 decimal place. . a. What is the labor content? 395 seconds per watch b. Assume a demand rate of 50 watches per hour. What is the takt time? 72 seconds per watch c. c Assume a demand rate of 50 watches per hour. What is the target manpower? workers d. An external supplier suggests shipping the battery module with preinstalled batteries, thereby eliminating the need for step 10. What will be the process capacity with this change? watches per hour e. How could you increase the capacity of the process by rebalancing it? a. Move check switch (step 11) to station D b. Move install set switch in bezel (step 4) to station B c. Move install battery clip on module (step 8) to station B d. Move cosmetic inspection (step 14) to station D f. What would be the capacity of the process (Watches per hour) if three worker each completed the activities currently assigned to stations A, B, and C, and three other workers each completed the activities currently assigned to stations D, E, and F.Assume processing times for specific tasks remains the same and workes are able to perform tasks without interference. Watches per hour