एक आदमी अपनी आधी यात्रा 6 किमी प्रति घंटा की गति से तय करता है यारों शेष यात्रा 3 किमी प्रति घंटा की गति से तय करता है बताएं की पूरी यात्रा की उसकी उसकी औसत गति कितनी है
Answers
Answered by
1
let the total distance be x km.
for distance x\2. speed =6km\h
time taken = x\12
for next half journey
speed is 3km\h
time taken= x\6.
total time x\6+x\12=x\4
avg. speed for whole journey.=total disp.\ total time taken
=x÷x\4=4
so his avg speed for whole journey is 4km per hour
for distance x\2. speed =6km\h
time taken = x\12
for next half journey
speed is 3km\h
time taken= x\6.
total time x\6+x\12=x\4
avg. speed for whole journey.=total disp.\ total time taken
=x÷x\4=4
so his avg speed for whole journey is 4km per hour
Answered by
0
Answer:
4 KM/
Step-by-step explanation:
average speed = (2×6×3)÷(3+6))
. = 4km/
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