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PLEASE HELP SKJSDLFSKDJF
Mr. Smith drove for 45 minutes at a speed of 40 km/h. He stopped for 15 minutes for a coffee break and then he drove for 2 hours at a speed of 75 km/h. What was his average speed for the entire journey?

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Respuesta :

mgalbearth

45 min is 3/4 of an hour, 3/4 0f 40 km/h=30 km

75km/h x 2hr=150km

=180km

Total time:3hr

180kh/3hr=60km/h

sorry if im wrong

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