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Q:
A) 50 kmph | B) 60 kmph |
C) 70 kmph | D) 80 kmph |
Answer: B) 60 kmph
Explanation:
Explanation:
Speed of tractor = 360/12 = 30 kmph
Speed of jeep = 250 x 30/100 = 75 kmph
But, given ratio of speed of car, jeep and tractor is 3 : 5 : 2
Speed of car = 3 x 75/5 = 45 kmph
Required, average speed of car and jeep = 75 + 45/2 = 60 kmph.