In a certain population group, 57% of the people have characteristics X and 63% have characteristics Y. If every person in the group has at lest one of the of the two characteristics, then what percent of the people have both X and Y?
Solution
Correct Answer: Option A
আমরা জানি ,
Total=n(A)+n(B)-Both+None
বা,100%=57%+63%-Both+0
বা,100%=120%-Both
বা,Both=120%-100%
বা,Both =20%
Total=n(A)+n(B)-Both+None
বা,100%=57%+63%-Both+0
বা,100%=120%-Both
বা,Both=120%-100%
বা,Both =20%
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