The following tasks are to be performed on an assembly line:

TASK SECONDS TASKS THAT MUST PRECEDE

A $25$

B $20$ A

C $16$ B

D $35$ B

E $27$ C

F $15$ D

G $10$ E$,$ F

H $35$ G

The workday is $8\mathrm{.}75$ hours long. The demand for completed product is $700$ per day. What is the theoretical number of workstations required to meet the desired output rate?

Note: Round up your answer to the next whole number.