A Worker Was Observed for Four Cycles in a Repetitive

Multiple Choice

A worker was observed for four cycles in a repetitive task that contains four distinct elements. The observer recorded the following items in seconds, using the continuous method.
$$\begin{array} { | c | c | c | c | c | } \hline \text { Element } & \text { Cycle 1 } & \text { Cycle 2 } & \text { Cycle3 } & \text { Cycle4 } \\\hline \mathbf { 1 } & 12 & 66 & 111 & 168 \\\hline \mathbf { 2 } & 21 & 75 & 122 & 185 \\\hline \mathbf { 3 } & 37 & 86 & 133 & 200 \\\hline \mathbf { 4 } & 53 & 89 & 146 & 209 \\\hline\end{array}$$
-Use the information in Table H.1.Assume that work element 1 receives a performance-rating factor of 1.1 and all other elements receive a rating of 1.2.If work elements 1 and 3 are performed every other cycle,and elements 2 and 4 are performed every cycle,what is the normal time for the complete cycle?

A) Fewer than 45 seconds
B) Greater than or equal to 45 seconds but fewer than 48 seconds
C) Greater than or equal to 48 seconds but fewer than 51 seconds
D) Greater than or equal to 51 seconds