L and A are classmates as well as good friends. In a class of 30 students, L has 10 unique friends and 5 friends who are common to A. A has a total of 17 friends in the class. How many students are friends with neither L nor A?

5
3
4
2

LohaHridoy

5 views

2025-01-04 04:42

1 Answers

AhmedNazir

Option 2 : 3

The given information can be represented by a Venn diagram as follows:

[ alt="F2 Shraddha Railways 23.03.2022 D10" src="//storage.googleapis.com/tb-img/production/22/04/F2_Shraddha_Railways_23.03.2022_D10.png" style="width: 315px; height: 171px;">

Total students in class = 30
Total friends of L and A = 10 + 5 + 12 = 27
Number of students who are friends with neither L nor A = 30 - 27 = 3

Hence, 'option 2' is the correct answer.

5 views Answered 2022-09-04 04:29

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