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WINK, Inc. follows a certain procedure that requires two tas

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WINK, Inc. follows a certain procedure that requires two tasks to be finished independently in order for a job to be done. On any given day, there is a 7/8 probability that task 1 will be completed on time, and a 3/5 probability that task 2 will be completed on time. On a certain day, what is the probability that task 1 will be completed on time, but task 2 will not?

A. 1/20
B. 3/40
C. 13/40
D. 7/20
E. 13/22

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