CAT Quantitative Ability Questions | CAT TIme, Speed, Distance and Work questions
Comprehension
Directions for questions: Read the information given below and answer the questions that follow :
Rajiv travels to B from A in 4 hrs. travelling at 35 kmph for two hrs and at 45 kmph for the next two hrs. Aditi travels on the same route at speeds of 30, 40 and 50 kmph, covering equal distances at each of these speeds. The relation between fuel consuption and speed is given in the following graph.
CAT/1999
Question . 112
Zorin would like to drive Aditi’s car over the same route form A to B. minimize the petrol consumption for the trip. The amount of petrol required by him is
Explanatory Answer
Method of solving this CAT Quantitative Ability Question from TIme, Speed, Distance and Work question
(a) In order to minimize the petrol consumption mileage has to be maximum from the graph given in the question.
Maximum mileage is 24 kms/ltr and the distance to be travelled is 160 kms so the minimum petrol consumption
= distance / mileage
= 160 / 24
= 6.66 ltrs.