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Time and Distance Practice Test 1 with solutions
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© examsnet.com
Question : 13
Total: 40
A man completes a journey in 5 hours. The first-half of the journey is travelled at the speed of 20 kmph while the second-half is travelled at the speed of 10 kmph. What is the average speed for the whole journey?
40 kmph
40/3 kmph
20 kmph
10 kmph
Validate
Solution:
👈: Video Solution
Speed in the first-half of the distance = 20 kmph
Speed in the second-half of the distance = 10 kmph
Average speed =
2
x
y
x
+
y
=
2
×
20
×
10
20
+
10
=
400
30
=
40
3
kmph
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