sparsh.21 wrote:In a village of 100 households,75 have at least one DVD player, 80 have at least one cell phone, and 55 have at least one mp3 player. If x and y are respectively the greatest and lowest possible number of households that have all three of these devices, x-y is
a. 65
b. 55
c. 45
d. 35
e. 25
getting the value of x is easy = 55
for the value of y i.e. lowest
lets say out of 55 nobody had cell phone
80-55 = 25
55-25 = 30
out of 30 nobody had DVD,
75-55 = 20
30-20 = 10
x - y = 55 - 10 = 45
I am not too sure about this. Kindly confirm the OA?
