Question

9. Jagan went to another town such that he covered 240 km by a car going at 60 km h'
Then he covered 80 km by a train, going at 100 km h-1 and the rest 200 km, he covered
by a bus, going at 50 km h-1. What was his average speed during the whole journey ?
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Answer 1

Answer:

By car 240 km at 60 kmph

Time taken = 240/60 = 4 hr.

By train 240 km at 60 kmph

Time taken = 400/100 = 4 hr.

By bus 240 km at 60 kmph

Time taken = 200/50 = 4 hr.

So total time = 4 + 4 + 4 = 12 hr.

and total speed = 240+400+200 = 840 km

Average speed of the whole journey = 840/12 = 70 kmph.

Answer 2

Step-by-step explanation:

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