Question

A man walks at a speed of 6km per hour for 1km and then 8km per hour for next 1km . Find the average speed of the walk .
9 ....​

Answer 1

Answer:

48/7 km/hr

Explanation:

V1 = 6 km/hr

D1 = 1 km

T1 = 1/6 hr

V2 = 8 km/hr

D2 = 2 km

T2 = 1/8 hr

Average Speed = Total distance travelled/Total time taken

= (D1+D2)/(T1+T2)

=2/(1/6+1/8)

=2/(7/24)

=2×24/7

= 48/7 km/hr