1. A man walks at a speed of 6 km/hr for 1 km and 8 km/hr
for the next 1 km. What is his average speed for the walk
of 2 km ?
Answers
Answered by
1
Answer:
6.85 km/h
Explanation:
Speed =6km/h
distance =1km
Time =distance/speed=1/6h
Speed =8km/h
Distance =1km
Time =distance/speed=1/8h
Average speed =Totaldistance/totaltimetaken
=1+1+
6
1
+
8
1
=2+
24
4+3
=2+
24
7
=2×
7
24
=
7
48
=6.85km/h
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