Question

in a certain class 15 students play basketball 13 play chess and 5 play both the games how many students are the class assuming that each student play atleast one game​

Answer 1

Answer:

basketball= 15

chess = 13

both= 5

Total= 15 +13-5. [5 is included 2 times]

= 23

Answer 2

Answer:

answer is 24

Step-by-step explanation:

no. of students play basketball -n(B)=15

no of students play chess-n(c)=13

no.of students play both-n(B intersection C)=5

no of students in the class -n(BUC)=?

n(BUC)=n(B)+n(c)-n(B intersection c)

. .. =15+13-5

n(BUC)=28-5

=23

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