1. In a certain village, 22% of the families own agricultural land, 18% own a mobile phone and 1600 families own both agricultural land and a mobile phone. If 68% of the families neither own agricultural land nor a mobile phone, then the total number of families living in the village is:
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By: anil on 05 May 2019 02.39 am
22% of the families own agricultural land, 18% own a mobile phone, 1600 families own both and 68% families own none. P(A $$cup$$ B) = P(A) + P(B) - P(A $$cap$$ B) 32 = 22 + 18 - x x=8. Hence, there will be 8% families who own both. 8% =1600 (Given in question) Total families in a village =>100% = 20000
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