Question

for travelling a distance of 160 km a train travels at a speed of 80 km for 120 km and the rest at 40 km per hour find the average speed of the train
(a)60
(b)68
(c)64
(d)72​

Answer 1

Answer:

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Step-by-step explanation:

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Answer 2

Answer:

total distance covered by the train

<br> Time taken by train for first

km,

hour<br> Time taken by train for second

km,

hour<br> Time taken by train for third

km,

hour<br>

Total time taken,

<br>

Average speed of the train,