Latha covers a certain distance from his house to office by bike. She travelled at the speed of 60 km/hr, he reached the office 10 minutes late. So, she increased the speed by 20 km/hr, she would have reached the office 5 minutes earlier. Then find the distance between her house to office?
A. 40 km
B. 30 km
C. 45 km
D. 25 km
E. None of these
Sol:
Distance= (Difference between arrival time *
Product of speed) / Difference between the
speeds
= > (15/60) * [(60 * 80) / 20] = 60 km
