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Trains Boats and Streams Practice Test 5 with solutions
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© examsnet.com
Question : 4
Total: 8
The rate of current is 7 km/hour and speed of boat in still water is 23 km/hour. Find the total time taken by a man to go 48 km downstream and come back to the starting point.
4 hours
5 hour 36 minutes
5 hours
5
1
2
hours
5
2
3
hours
Validate
Solution:
Rate downstream = 23 + 7 = 30 km/hour
Rate upstream = 23 - 7 = 16 km/hour
Total time taken =
48
30
+
48
16
= 5 hour 36 minutes
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