Answer:
= 30 seconds
Since the question is asking minutes , i would write 0.5 minute but i dont see if that is possible.
Explanation:
1 lap = 10km.
So Tom took 5 min to run 10 km.
If 10km = 5min
What about 1km = ?
= (1 x 5) ÷ 10
= 5 ÷ 10
= 0.5 min x 60
= 30 seconds.