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Directions for the following two questions: Answer the questions based on the following information.
The petrol consumption rate of a new model car ‘Palto’ depends on its speed and may be described by the graph below.
The axis represents the speed and the Y axis represents the Fuel Consumption (Liters per hour)
Manasa would like to minimize the fuel consumption for the trip by driving at the appropriate speed. How should she change the speed?
[CAT 2001]
If she drives at 40 kmph, the fuel consumed = 200/40 * 2.5 = 12.5 liters
If she drives at 60 kmph, the fuel consumed = 13.33 liters
If she drives at 80 kmph, the fuel consumed = 200/80 * 7.9 = 19.75 liters
To minimize fuel consumption, Manasa has to decrease the speed.
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