In a room of 36 people. 20 players play chase while 28 players play poker. How many players play both?
Created: 2 years ago |
Updated: 2 years ago
best des
আমরা জানি,
Total = n(A) + n(B) - both + none
⇒ 36 = 20 + 28 - both + 0
⇒ 36 = 48 - both
⇒ both = 48 - 36
⇒ both = 12
Total = n(A) + n(B) - both + none
⇒ 36 = 20 + 28 - both + 0
⇒ 36 = 48 - both
⇒ both = 48 - 36
⇒ both = 12
Md Azizur Rahman
Founder of Satt
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