If you travel from your house to office at the speed of 30kmph and return home at the speed of 70 kmph then whatbis your average speed for entire journey
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Answered by
2
Answer:
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Explanation:
Ratio of speeds at which he goes to office and returns = 30 : 20 = 3 : 2
Therefore, ratio of the time taken to go to office and returns = 2 : 3 (because time is inversely proportional to speed when distance is constant)
Total time = 5 hours.
=> Time taken to go to office
=
5
×
2
2
+
3
=
2
hr
Hence, distance between house and office = 30 × 2 = 60 km
Answered by
6
Answer:
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If you travel from your house to office at the speed of 30kmph and return home at the speed of 70 kmph then whatbis your average speed for entire journey
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