A motorcycle during its motion moves with a speed of 40 km per hour in first 10 minutes ,50 km per hour in next 10 minutes ,and 30 km per hour in the last 10 minutes then average speed of this motorcycle in the time interval 30 minutes
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Answer:
40xl0=4 00
50xl0 = 500
30 x 10=300
Total: 1200
Average=1200/30=40km/min
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