Book Maths Puzzle Time and Work

A, B, and C can fnish a job in 6 days. If B and C work together, the job will take 9 days, if A and C work together, the job will take 8 days. In how many days can each man worki

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Book Other Question

The difference between two numbers is 15. When twice the smaller number is subtracted from three times the larger number, the difference is 58. What is the larger number? A person traveling 4hr by plane and 25hr by ship covers 1580 miles. If the speed of hte plane had been one-half of the acutal speed and the speed of the ship had been one-fourth g