Q:
The respective ratio between the speed of a bike, a van and lorry is 3 : 5 : 2. The speed of the van is 250 percent of the speed of the lorry which covers 360 km in 12 hours. What is the average speed of the bike and the van together?
Answer & Explanation
Answer: A) 60 kmph
Explanation: Speed of lorry = = 30 kmph
Speed of van = = 75 kmph
Speed of bike = = 45 kmph
Therefore, now required average speed of bike and van = = 60 kmph.
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