self Maths Puzzle

Shyam’s car gives an average of 20 km per litre,then the difference in the cost of travel per kilometre betweenthe two cars is

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self Other Question
You have plastic chips in your hand which are red on top and blue on the bottom. If you dropped 8 plastic chips, how many would probably land with the red side up? 5 mangoes and 4 oranges cost as much as 3mangoes and 7 oranges. What is the ratio of cost of onemango to the cost of one orange?