Q$4\mathrm{.}2($Algo$)$ Assign tasks to workers $[4\mathrm{.}1,4\mathrm{.}4]$

Consider the following six tasks that must be assigned to four workers on a conveyor$-$paced assembly line $($i$.$e$.,$ a machine$-$paced line flow$).$ Each worker must perform at least one task.

Time to Complete Task $($seconds$)$

Task $130$

Task $215$

Task $335$

Task $440$

Task $515$

Task $630$

The current conveyor$-$paced assembly line configuration assigns the workers in the following way:

Worker $1$: Task $1$

Worker $2$: Task $2$

Worker $3$: Tasks $3,4$

Worker $4$: Tasks $5,6$

a$.$ What is the capacity of the current line? $($Enter your answer as a whole number.$)$