
Advanced Engineering Mathematics
10th Edition
ISBN: 9780470458365
Author: Erwin Kreyszig
Publisher: Wiley, John & Sons, Incorporated
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A man can commute either by train or by bus. He always goes to work on the train in the morning, he comes home on the train or on the bus in the afternoon. During a total of x working days, the man commuted by the bus 8 times, and commuted by train 26 times. Find x.
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