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 ?	Choose one
A) 13 km/hr  B) 26 km/hr  C) 34 km/hr  D) 44 km/hr  E) none of these
if the downstream is a km/hr and upstream is b km/hr then speed of stream is 1/2(a-b)   so, 1/2(40-14)=13 km/hr 13 km/hrNSWER:13 km/hr
<result>A</result>
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 ?