i dont undertand how to solve this problem

The following tasks are to be performed on an assembly line: TASKS THAT MUST PRECEDE TASK B D E E G H SECONDS 27 18 19 15 22 16 30 20 D E, F The workday is 6.25 hours long. Demand for completed product is 500 per day, a. Find the cycle time required to meet the desired output rate. (Round your answer to 1 decimal place.) Cycle time 45.0 seconds per unit b. What is the theoretical number of workstations required to meet the desired output rate? (Round up your answer to number.) Number of workstations d. Balance the line using sequential restrictions and the longest-operating-time rule. (Leave no cells blank - be certain to enter "0" wherever required. Round your answers to 1 decimal place.) Idle Time Work Station 1 Task TA B-C 11 IV V e. What is the efficiency of the line balanced as in part (d) assuming it is running at the cycle time determined in part (a)? (Round your answer to 1 decimal place.) Efficiency e. What is the efficiency of the line balanced as in part (d) assuming it is running at the cycle time determined in part (a)? (Round your answer to 1 decimal place.) Eciency 1. Suppose that demand rose from 500 to 550 units per day. What would you do? (Round your answer for cycle time down to the nearest whole number.) cycle time to seconds, which may require rebalancing the line 9. Suppose that demand rose from 500 to 950 units per day. What would you do? (Round your answer for cycle time down to the nearest whole number.) yde time to seconds, which may require rebalancing teine