A man reaches his office 10 minutes late while traveling at the speed of 16 km/hr from home. If he travels at 20 km/hr speed, then he reaches the office 5 minutes early. How much time does the man take to reach the office while traveling at 16 km/hr?
1
1 hour 10 min
2
1 hour 5 min
3
1 hour 15 min
4
1 hour 2 min
5
1 hour 20 min