Quantitative Aptitude Ques 319

Question: The respective ratio between the speeds of a car, a jeep and a tractor is 3: 5: 2. The speed of the jeep is 250% the speed of the tractor which covers 360 km in 12 h. What is the average speed of car and jeep together?

Options:

A) 60 km/h

B) 75 km/h

C) 40 km/h

D) Cannot be determined

E) None of the above

Show Answer

Answer:

Correct Answer: A

Solution:

  • Speed of the tractor $ =\frac{360}{12}=30,km/h $ Speed of the jeep $ =30\times \frac{250}{100}=75,km/h $ Speed of the car $ =\frac{3}{5}\times 75=45,km/h $ Average speed of car and jeep together $ =\frac{75+45}{2}=60,km/h $
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