Question : John drives 250 km at 50 km/hr and then 350 km at 70 km/hr. Find his average speed for the whole journey in km/hr.
Option 1: 55 km/hr
Option 2: 60 km/hr
Option 3: 58 km/hr
Option 4: 65 km/hr
Answer (1)
25th Jan, 2024
Correct Answer: 60 km/hr
Solution :
Time taken by John when he drives 250 km at 50 km/hr =
Time taken by John when he drives 350 km at 70 km/hr =
Average speed for the whole journey =
Hence, the correct answer is 60 km/hr.
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