-A Time-Study Analysis Was Performed on a Task with Two

Multiple Choice

$$\begin{array} { | c | c | c | c | } \hline \text { Work Element } & t ( \mathrm { sec } ) & R F & F \\\hline 1 & 5.6 & 1.1 & 1 \\2 & 3.1 & 1.0 & 1 \\3 & 1.9 & 1.1 & 1 \\4 & 4.0 & 0.8 & 2 \\\hline\end{array}$$
-A time-study analysis was performed on a task with two work elements.The select times for these work elements are 21.0 seconds and 13.0 seconds,with rating factors of 1.1 and 1.2,respectively.Each work element is performed twice per cycle.If an allowance of 20 percent is used,what is the standard time for this task?

A) Fewer than 50 seconds
B) Greater than or equal to 50 seconds but fewer than 70 seconds
C) Greater than or equal to 70 seconds but fewer than 90 seconds
D) Greater than or equal to 90 seconds