Iift 2021 - 23rd Dec Question 14
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IIFT 2021 (23rd Dec)
P (A U B U C) = P (A) + P (B) + P (C) − {P (A ∩ B) + P (B ∩ C) + P (C ∩ A)} + P (A ∩ B ∩ C)
Let the no. of people who watch all three be x
78= 36+48+32-(14+20+12)+x
or x= 8
No. of people who watch times now only = 48 - (14+20)+8 = 22
No. of people who watch republic only = 32 - (20+12) + 8 = 8
Ratio = 22/8 = 11:4