A man covers a Distance from a town A To Town b on scooter at 30 km per hour and ride back from B to a at 20 km per hour find his average speed during the whole journey
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Shreyanshdhawan:
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solution.
Average speed= total distance covered/ total time taken.
so, total distance travelled= 2x (let distance from A to B= x)
Time taken to cover x distance at 30km/h
=> t1= x/30
now, t2= x/ 20
so, tatal time taken= x/30+ x/20
= (2x+ 3x)/ 60
= 5x/60
= x/12 h
Now, according to formula.
Average speed = 2x/ (x/12)
= 12*2
= 24km/h
hence average speed= 24km/h
______________
hope it helps you my friend.
☺✌✌
Average speed= total distance covered/ total time taken.
so, total distance travelled= 2x (let distance from A to B= x)
Time taken to cover x distance at 30km/h
=> t1= x/30
now, t2= x/ 20
so, tatal time taken= x/30+ x/20
= (2x+ 3x)/ 60
= 5x/60
= x/12 h
Now, according to formula.
Average speed = 2x/ (x/12)
= 12*2
= 24km/h
hence average speed= 24km/h
______________
hope it helps you my friend.
☺✌✌
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