Question

In a city 20 percent of the population travel by a car, 50 percent travel by bus and 10 percent travel by both car and bus .Then persons travelling by a car or a bus is

Answer 1

Here is your answer:-

Let x be the total number of population
then according to the problem,
p(car)=20% of x=x/5
p(bus)=50% of x=x/2
p(car ∩ bus)=10% of x=x/10
since,
p(car ∪ bus)=p(car)+p(bus)-p(car ∩ bus)
p(car ∪ bus)=x/5 + x/2 - x/10=3x/5 persons ans.

if x(population)=100
Then persons travelling by car or bus will be 60 persons.


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Answer 2

Answer:

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Step-by-step explanation:

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