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Q1
:
A boat can travel with a speed of 13 km/hr in still water. If the speed of the stream is 4 km/hr, find the time taken by the boat to go 68 km downstream.
A
2 hours
B
5 hours
C
4 hours
D
3 hours
Solution
ANS:
C
- 4 hours
Speed downstream = (13 + 4) km/hr = 17 km/hr.
Time taken to travel 68 km downstream =
68
hrs = 4 hrs.
17
Share :
hrs = 4 hrs.