The snapback timing method was used to obtain average time and performance rating values for the work elements in a certain repetitive task. The values are given in the table below. Elements $a,b,$ and $c$ are worker$-$controlled. Element $d$ is a machine$-$controlled element and its time is the same each cycle $($N$.$A$.$ means performance rating is not applicable$).$ Element $c$ is performed while the machine is performing its cycle $($element $d).$ Element $e$ is a worker$-$controlled irregular element performed every six cycles. The machine is idle during elements $a,b,$ and $e.$ Four product units are produced each cycle. The machine allowance is zero, and a $15\%$ PFD allowance is applied to the manual portion of the cycle. Determine $($a$)$ the normal time and $($b$)$ the standard time for this cycle. If the worker's performance during actual production is $140\%$ on all manual elements for $7$ actual hours worked on an $8-$hour shift, determine $($c$)$ how many units will be produced and $($d$)$ what the worker's efficiency will be$.$

$\backslash$table$[[$Work Element,$a,b,c,d,e$