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Q1
:
A boat running downstream covers a distance of 16 km in 2 hours while for covering the same distance upstream, it takes 4 hours. What is the speed of the boat in still water?
A
4 km/hr
B
6 km/hr
C
8 km/hr
D
Data inadequate
Solution
ANS:
B
- 6 km/hr
Rate downstream =
16
kmph = 8 kmph.
2
Rate upstream =
16
kmph = 4 kmph.
4
Speed in still water =
1
(8 + 4) kmph = 6 kmph.
2
Share :
kmph = 8 kmph.
Speed in still water =