A survey of 100 families was conducted. 39 of these families own a car, 55 have an air – conditioner in their house, 58 own a TV and 58 own mobile phones. 20 families own exactly one of these things. The number of families who own only car and the number of families who own only mobile phone is the same. The number of families who own only TV and the number of families who own only air-conditioner is the same.5 families have only car and AC, 7 own only car & TV, 9 own only car & mobile phone,11 own only AC & TV, 13 own only AC & mobile phone, 15 own only TV & mobile phone. Number of families who own only AC is four times the families who own only Cars. Ten families own all four items. All 100 families own atleast one of these items.
How many people own TV and mobile phone?
A survey of 100 families was conducted. 39 of these families own a car, 55 have an air – conditioner in their house, 58 own a TV and 58 own mobile phones. 20 families own exactly one of these things. The number of families who own only car and the number of families who own only mobile phone is the same. The number of families who own only TV and the number of families who own only air-conditioner is the same.5 families have only car and AC, 7 own only car & TV, 9 own only car & mobile phone,11 own only AC & TV, 13 own only AC & mobile phone, 15 own only TV & mobile phone. Number of families who own only AC is four times the families who own only Cars. Ten families own all four items. All 100 families own atleast one of these items.
How many people own TV and mobile phone?
The correct option is A 31
Option A is the correct answer. Check the video for the approach.
Option A is the correct answer. Check the video for the approach.
