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1. Alvin runs 2 km to the bus stop, and then rides the bus 4.5 km to school. On average, the bus is 45 kmfh

1. Alvin runs 2 km to the bus stop, and then rides the bus 4.5 km to school. On average, the bus is 45 kmfh faster than Alvin's average running speed. If the entire trip takes 25 min, how fast does Alvin run? (4 marks)

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