A cracked ceramic cooktop should be replaced as soon as possible to reduce the risk of permanent damage to the entire unit. The cooktop is designed to protect the burners beneath them. Continue Reading.
An average person can walk a mile in 20 minutes and there is about 6.2 miles in 10km, so around 2 hours. You have to consider the person's size and physical condition. If you are somewhat fit, 10km in 2 hours is a breeze.
I'm 14, reasonably fit and healthy and I did an easy 10km in 50mins without training. I can do a 5km run in about 18-20mins depending on the course. For 20km 2-2.5 hours would be an okay time for an reasonably fit person.It depends on your body type but if you trained fairly hard (mainly jogging about 2,5-3km a day, with some extra fitness work) 5 times a week it would probably take about a month to do about 2hours in a 20km run if you started fairly unfit.'m 14, reasonably fit and healthy and I did an easy 10km in 50mins without training. I can do a 5km run in about 18-20mins depending on the course. For 20km 2-2.5 hours would be an okay time for an reasonably fit person.