Question

If a boat is moving in upstream with velocity of 14 km/hr and goes downstream with a velocity of 40km/hr, then what is the speed of the stream

Answer 1

27km/hr is actual speed of boat
nd
in upstream 27-13=14km/hr
in downstream 27+13= 40 km/hr
speed of stream=13 km/hr

correct me if i m wrong

Answer 2

May this helps you .

If a boat is moving in upstream with velocity of 14 km/hr and goes downstream with a velocity of 40 km/hr, then what is the speed of the stream ?
(a) 13 km/hr (b) 26 km/hr (c) 34 km/hr (d) none of these

Let v be the velocity of the boat and c the current. Then we have:
Upstream:
1.) v - c = 14
Downstream:
2.) v + c = 40
From 1.) we have v = 14 + c
Substitute 14 + c for v in equation 2.):
(14 + c) + c = 40
2c = 40 - 14
2c = 26
c = 13.