In how many ways can a commuter from city a to city b

Reference no: EM13178000

Four commuter trains and three express buses depart from City A to City B in the morning, and three commuter trains and three 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?

Reference no: EM13178000

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