25
The speed of boat when travelling downstream is 32 km/hr whereas when travelling upstream it is 28 km/hr. What is the speed of the boat in still water ?
- A27 km/hr
- B29 km/hr
- C31 km/hr
- DCannot be determined
Answer not set
Log in or create a free account to reply and vote.
0
CCommunity
Solution
Let the speed of boat be b and that of water be w.
Hence, b+w = 32
and b-w = 28
Adding both eqns together, 2b = 60
b=30km/hr
Let the speed of boat be b and that of water be w.
Hence, b+w = 32
and b-w = 28
Adding both eqns together, 2b = 60
b=30km/hr
0
CCommunity
Solution
Let the speed of boat be b and that of water be w.
Hence, b+w = 32
and b-w = 28
Adding both eqns together, 2b = 60
b=30km/hr
Let the speed of boat be b and that of water be w.
Hence, b+w = 32
and b-w = 28
Adding both eqns together, 2b = 60
b=30km/hr