CAT Exam Model Paper 3 with solutions for free online practice

Rajiv reaches city B from city A in 4 hours, driving at speed o f 35 kmph for the first two hour and at 45 kmph for the next two hours. Aditi follows the same route, but drives at three different speeds : 30, 40 and 50 kmph, covering an equal distance in each speed segment. The two cars are similar with petrol consumption characteristics (km per litre) shown in the figure below.
The quantity of petrol consumed by Aditi for the journey is