Gopal went to the hospital at the speed of 60km/hr while returning for his home he covered the half of the distance at the speed of 10km/hr,but suddenly he realized that he was getting late so he increased the speed and reached the home by covering rest half of the distance at the speed of 30km/hr. The average speed of gopal in the whole journey is?
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Answer:
20km/hr
Step-by-step explanation:
it's the mean of 30 & 10
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