qistinadasavage qistinadasavage

07-11-2021
Mathematics

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a swallow files at a speed of 50 km/h for 3 hours and then at a speed of 40 km/h for a further 2 hours .find the average speed for the whole journey

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planteman planteman

07-11-2021

Answer:

18 km/h

Step-by-step explanation:

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kaidekasumi kaidekasumi

07-11-2021

Answer:

18 km/h

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