Answer:
48 min to complete 8Km
Step-by-step explanation:
Usain runs 5km in --- 30 minutes
[tex]also \: \: speed = \frac{distance \: covered}{time \: taken \: } [/tex]
Usain's speed = 5km/30min
= 1km/6min
So, Usain takes 6 min to complete 1 km
So , to cover 8km he will take = 8 × 6min
= 48min
He will take 48 min.
