While planning their outing Abhishek understood that their boat could travel with a speed of 12kmph in still water The

downstream speed = speed of the boat + speed of the river
12+4 = 16
distance travelled = 16x24/60 = 6.4
8 years agoHelpfull: Yes(37) No(1)

Downstream speed= boat speed in still water + speed of stream
Boat speed in Downstream = 12 + 4= 16 km/h
Time spend = 24 min = 24/60 h = 2/5 h
Distance Travel = 16 * 2/5 = 6.4 km
so Ans will be
a)6.4
8 years agoHelpfull: Yes(6) No(0)
6.4km i guess
8 years agoHelpfull: Yes(5) No(1)
for me its 3.2
(up stream+down stream)/2=8
and (upstream-downstream)/2=12
solving we get up stream=16 so down stream=8
in 24 minute it goes=8*(24/60)=3.2
8 years agoHelpfull: Yes(0) No(7)
relative speed of the stream and boat= 12-4=8 kmph
time of travell= 24 min
distance=8*24/60 = 3.2 km
8 years agoHelpfull: Yes(0) No(5)
it z asking for downstream distance.. so i think 6.4 is answer
8 years agoHelpfull: Yes(0) No(3)
Answer is 6.4km.
B=12kmph, S=4kmph, T(downstream) = 24min = 2/5hr.
B+S=D/(2/5) , Therefore D=6.4kms.
8 years agoHelpfull: Yes(0) No(0)
Answer is 6.4 km

Total speed = (speed of boat in still water + speed of water)= 12kmph + 4 kmph = 16kmph
Total time of travel = 24/60 hrs
Therefore distance covered = 16×24/60 = 6.4km
5 years agoHelpfull: Yes(0) No(0)
Speed of the boat in still water (u) = 12 km/hr
Travel time (downstream) = 24 mins or 0.4 hr
Speed of the stream (v) = 4 km/hr

Therefore,
Speed of the boat downstream = u + v = 12 + 4 = 16 km/hr
Distance traveled downstream (d) = Speed of the boat downstream x Travel time (downstream)
= 16 x 0.4 = 6.4 kms .......... (Answer)
5 years agoHelpfull: Yes(0) No(0)
x=12
y=4
d=st=(x+y)t=(16*24)/60 --->because time is minute
4 years agoHelpfull: Yes(0) No(0)

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