The current of a stream runs at the rate of 4 kmph.
The current of a stream runs at the rate of 4 kmph. A boat goes 12 km and back to the starting point in 2 hours, then find the speed of the boat in still water?
Answer/Solution
E)13.21
Steps/Work
S = 4
M = x
DS = x + 4
US = x - 4
12/(x + 4) + 12/(x - 4) = 2
x = 13.21
Answer:E
M = x
DS = x + 4
US = x - 4
12/(x + 4) + 12/(x - 4) = 2
x = 13.21
Answer:E