Question

In a class of 40 students 24 students can play kho-kho, 20 can play kabaddi and 38 students can play any one game.

Answer 1

Answer:

No they can't

Step-by-step explanation:

If you add 20+24+38 then that equals 82 which is more than 40

Answer 2

4 students are playing both kho-kho and kabaddi

Step-by-step explanation:

• Given that In a class of 40 students 24 students can play kho-kho, 20 can play kabaddi and 38 students can play any one game.
• Let x be the number of students in the class

x=40

• Let y be the number of students playing kho-kho

y=24

• Let z be the number of students playing kabaddi

z=20

• Let a be the number of students playing any one game

a=38

• That is 38 students playing kho-kho or kabaddi

• $P(A\bigcup B)=P(A)+P(B)-P(A\bigcap B)$
• 38=20+24-$P(A\bigcap B)$

• Therefore $P(A\bigcap B)=44-38$
• $P(A\bigcap B)=4$

Therefore 4 students are playing both kho-kho and kabaddi