In new jersey 90% of the population own a car ,15% own a motorcycle ,and everybody owns one or the other or both .What is the percentage of motorcycle owners who own cars?
Solution
Correct Answer: Option C
আমরা জানি ,
Total =n(A)+n(B)-Both +none
বা,100=90+15-Both+0
বা, 100=105-Both
বা,Both =105 -100
Both =5
অতএব ,নির্ণেয় শতকরা =5/15 × 100%
=33 (1/3)%
Total =n(A)+n(B)-Both +none
বা,100=90+15-Both+0
বা, 100=105-Both
বা,Both =105 -100
Both =5
অতএব ,নির্ণেয় শতকরা =5/15 × 100%
=33 (1/3)%
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