A dinner party is to be fixed for a grou...

A dinner party is to be fixed for a group of 100 persons. In this party, 50 persons do not prefer fish,60 prefer chicken and 10 do not prefer either chicken or fish. The number of persons who prefer both fish and chicken is

attribute

continuous variable

discrete variable

none of these

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There is a group of 265 persons who like either singing or dancing or painting .In this group 200 like singing ,10 like dancing and 55 like painting. If 60 persons like both singing and dancing,30 like both singing and painting and 10 like all three activities then the number of persons who like only dancing and painting is

There is a group of 265 persons who like either singing or dancing or painting. In this group 200 like singing, 110 like dancing and 55 painting. If 60 persons like both singing and dancing, 30 like both singing and painting and 10 like all these activities, then the number of persons who like only dancing and painting is___

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