SOLUTION: A car consumes 5 litre per hour when travelling at 50kmph.Then find consumption of the car when travelling at 60kmp in 45 minutes and 60 minutes

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Question 908543: A car consumes 5 litre per hour when travelling at 50kmph.Then find consumption of the car when travelling at 60kmp in 45 minutes and 60 minutes
Answer by josgarithmetic(39617) About Me  (Show Source):
You can put this solution on YOUR website!
Direct Variation type of problem.
No other information to think otherwise.

5%2Alitersperhour=k%2A50%2Akilometersperhour%3F
This is in the form R=k%2Ar
Using R for the consumption rate
r as the speed of the car
k proportionality constant.

k=5%2F50
highlight_green%28k=1%2F10%29

5*(liters/hour)*(1/50)(hours/kilometer), is probably not the kind of situation involved here. Why, is that the consumption rate DEPENDS on the speed. I have assumed that consumption rate will increase with speed and is directly proportional to it.

The relationship you want then is highlight%28R=%281%2F10%29r%29.

The time values given in your question need to be adjusted for "per hour".