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Aptitude
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Verbal Reasoning
Computer Science
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Time and Work
Working together A and B can do a job in 40 days, B and C in 36 days and all three together in 24 days. In how many days can B alone do the job?
60
90
72
120
Correct Answer:
90
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Time and Work
A, B and C can do a job working alone in 50, 75 and 20 days respectively. They all work together for 4 days, then C quits. How many days will A and B take to finish the rest of the job?
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