Question

(1) In a city 20% of the population travels by Cas sot travels
by bus and lot travels by both car and bus. Then, persons
bavelling by care or bus are​

Answer 1

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In a city 20% of the population travels by Cas sot travels

by bus and lot travels by both car and bus. Then, persons

bavelling by care or bus are

$\huge{\tt{\colorbox{aqua}{AnswEr:}}}$

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.

Hope it helps:)

Answer 2

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.

Hope it helps:)