Answer:
7.78 minutes
Explanation:
Solving Mathematically this will be :
Time for the 6th task = Time for 6 tasks - time for 5 tasks
y = ax^b
where,
y is cumulative time required to produce x units
a is time required to produce first unit of the output
x is the number of units under consideration
b is the log of Learning Curve % divided by 2
therefore,
Time for 6 tasks = 11.23 minutes × 6 tasks
= 67.38 minutes
Time for 5 tasks = 11.92 minutes × 5 tasks
= 59,60 minutes
Time for the 6th task = 67.38 minutes - 59,60 minutes
= 7.78 minutes
Conclusion :
She need 7.78 minutes to complete the 6th task