13. A/can do a job alone in 9 days and B can do the
Job alone in 6 days (if each works for the full
working day). If B only works for only half the
working day (each day), how many days will it take
for A and B to finish the job working together?
A) 18/5 B) 9/5 C) 36/5 (D) 36/7 E) 9/4"
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Answer:
A and B to finish the job working together in = 36/7 days (or) 5 1/7 days.
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