Answer:
b) 10 minutes
Explanation:
Ajay's total travel time is the time on the road plus the time stopped.
A = (300 km)/(60 km/h) + 1 h + 20 min = 6 h + 20 min
Vijay's total travel time is similarly computed:
V = (300 km)/(50 km/h) + 30 min = 6 h + 30 min
Vijay will arrive 10 minutes after Ajay arrives.
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Additional comment
The relationship between time, speed, and distance is ...
time = distance / speed