Question

in a city 20 percent travel by car, 50 percent travel by bus and both bus and car tjen fimd the people travel by both bus and car​

Answer 1

Answer:it is a probability question

Step-by-step explanation:first take P(A)=20/100 , P(B)=50/100

since both are individual events P(A∩B)=P(A)×P(B)

now we need the % of people travelling in both bus and car so wwe need , P(A∪B)

P(A∪B)= P(A) + P(B) - P(A∩B)

⇒P(A∪B)= 20/100 + 50/100 -20/100×50/100

⇒1/5 + 1/2 - 1/5.1/2

⇒6/10 = 60/100 = 60%

therefore the percentage of people travelling by both bus and car is 60%

Answer 2

Answer:

30 percent

Step-by-step explanation:

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