If A can complete a job in 15 days and B can complete the same job in 20 days, then how many days (rounded up to the nearest two decimal places) will it take for both A and B to complete the job together?
A6.99 days
B9.01 days
C8.57 days
D7.25 days
A6.99 days
B9.01 days
C8.57 days
D7.25 days
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