Question

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A man covers first 100 km of his journey at 50 km/hr, next 120 km at 54 km/hr and last 30 kpxat 60km/hr.
Find his average speed during the whole journey.
एक आदमी पहली 100 किमी. की​

Answer 1

Answer:

Average speed= Total distance / total time

first 100 km at 50km/h so time taken= Distance/time

100/50= 2hrs.

next 120 km at 54km/h so time taken 120/54=2.2 hrs

last 30 km at 60 km/h so 30/60=1/2 hrs

Step-by-step explanation:

total time=2+2.2+0.5=4.7 hrs

total distance = 100+120+30=250km

that will give u answer

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