(c) 96% of the students who live less that two kilometers away from the school walk to school. The remaining 4% travel by car to school. What percentage of all those who travel by car to school live less than 2 km away from the school?

720 students walk to school which is 96% of all people living less than 2kms

So there are 720 / 0.96 = 750 students who live less than 2kms away.

4% of 750 = 30 = no. of students who travel by car.

Now there are: (50/360) (1440) = 200 students travel by car totally.

So answer is 30/200 = 15%

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