Choose the correct option from those given below.

The following table represents the manufacturing process of a small electrical appliance. The demand for the appliance is $630$ units$/$day$,$ and the average operating hours for the plant is $9$ hour$/$day$.$

Task Task Time $($sec$)$ Precedence Relationship

A $40-$

B $50$ A

C $35$ A

D $30$ B

E $20$ C

F $25$ D

G $34$ A

H $28$ E$,$ F

I $38$ G$,$ H

J $44$ I

K $46$ J

Total Time $390$

What is the ideal cycle time?