A car cover two distances 143 km and 77 km at the speed of 11 km/hr. What is the difference between the time (in hours) taken to cover 143 km and 77 km?
Show answer & explanation
Correct answer: C
Explanation
Time for 143 km = 143/11 = 13 hours
Time for 77 km = 77/11 = 7 hours
Difference = 13 – 7 = 6 hours