Question

d) 67 -2 +8
Q7. If a vehicle covers one third of a journey at 20 km/h, next one third at 40 km/h &
the last one third at 60 km/h. Find the average speed of the whole journey.
a) 32.7 km/h
b) 35 km/h c) 40 km/h d) 45 km/h​

Answer 1

Answer:

hii dear friend...

Explanation:

i think c is correct option for this question...

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