Mathematics, 12.02.2020 01:12 glocurlsprinces

A time study of an employee assembling peanut valves resulted in the following set of observations. What is the standard time, given a performance rating of 92 percent and an allowance of 24 percent of the total normal time?
Average Time (seconds) Observations
10 14
20 12
21 19
What is the standard time in seconds?

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