15 families of Ananda Colony wanted to go for small evening picnic and decided to bring their own food packs. 7 families brought French fries and 8 families brought Bread and Toast. But three families brought none of these two but Biryani. How many of them brought both French fries and Bread and Toast?
15 families of Ananda Colony wanted to go for small evening picnic and decided to bring their own food packs. 7 families brought French fries and 8 families brought Bread and Toast. But three families brought none of these two but Biryani. How many of them brought both French fries and Bread and Toast? Correct Answer 3
The venn diagram for the given sets of arrangement is shown below:
[ alt="F1 Z.K 31.7.20 Pallavi D2" src="//storage.googleapis.com/tb-img/production/20/08/F1_Z.K_31.7.20_Pallavi_D2.png" style="width: 217px; height: 138px;">
Number of people who brought French fries and Bread and Toast = (15 – 3) = 12
So, number of people who brought both French fries and Bread and Toast = (7 + 8) – 12 = 3
Hence, ‘3’ is the correct answer.
মোঃ আরিফুল ইসলাম
Feb 20, 2025