Question

Tolong dibantu dink no 25 pake cara dan jawaban yg benar

Answer 1

A. 9 - 8 - 7
bnyk siswanya 24

b. 14 - 14 - 12
siswa yg gemar keduanya 14

c. 15 - 10 - 10
yg tdk gemar keduanya 40-35= 5

d. kalo yg d itu soal nya sedikit kurang jelas maksudnya

Answer 2

25.
a.  n(A)  = 17, n(B)= 15, n(AnB) = 8
n(S)= n(A) + n(B) - n(AnB) = 17+15-8
n(S) = 24

b. n(S) = 46, n(A) = 28, n(B) = 26, n(AUB)' = 6
n(S)= n(A) +n(B)+n(AUB)' - n(AnB)
46 = 28+26+6 + x
46 = 70+x
x = 70-46
x = 24
 
c. n(S) = 40 , n(A) = 25, n(B)+ 20, n(AnB) = 10
n(S) = n(A)+n(B)+n(AUB)' - n(AnB)
40=25+20+x - 10
40= 35 + x
x= 40-35
x = 5

d. n(S) = 46, n(A) = 19, n(B) = 23, n(AUB)' = 16
n(S) = n(A)+n(B)+n(AuB)' - n(AnB)
46= 19+23+16 - x
46 = 58-x
x = 12
Hanya PMR = n(B) - x = 23 - 12 = 11