A new Ducati is designed for the Indian market such that its mileage at a particular speed
follows a certain relationship with that speed. Also , the speed decreases linearly with the mass of the rider while the petrol consumption per km increases linearly with the mass of rider .Ideally , when the mass of the rider is negligible, the speed is 100km/hr and mileage is 100km/l .When the speed of the Ducati is 50 km/hr , the mileage is 50 km/l.When the speed of the Ducati is 75 km/hr , the mileage will be
(1)60
(2)67
(3)72
(4)75
(5)78
________________________
Lost a lot of time solving this question,anybody has any shortcuts??
follows a certain relationship with that speed. Also , the speed decreases linearly with the mass of the rider while the petrol consumption per km increases linearly with the mass of rider .Ideally , when the mass of the rider is negligible, the speed is 100km/hr and mileage is 100km/l .When the speed of the Ducati is 50 km/hr , the mileage is 50 km/l.When the speed of the Ducati is 75 km/hr , the mileage will be
(1)60
(2)67
(3)72
(4)75
(5)78
________________________
Lost a lot of time solving this question,anybody has any shortcuts??
