Five commuter trains and four express buses depart from city a to city b in the morning, and three commuter trains and five express buses operate on the return trip in the evening. in how many ways ca

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Five commuter trains and four express buses depart from city a to city b in the morning, and three commuter trains and five express buses operate on the return trip in the evening. in how many ways can a commuter from city a to city b complete a daily round trip via bus and/or train?

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