Question

A man sit out on a cycle ride of so km.
. He covers 5km in 1st hour & during euch
successive hours his speed fail
s by 1/4 (2km hr.
How many hours will he take to finish
his ride.​

Answer 1

Answer:

Let the total distance covered be x

Distance travelled in 1hr=5km

Speed = distance/time

=5/1=5km/h

His speed fall by 1/4

So his speed= 5-5/4

= 20-5/4

= 15/4=3.75 km/hr.

Distance covered in successive hours=x-1

Average speed= km/hr.

Average speed= Total distance

Total time taken