a:b:c=2:3:1
a=2/3 b
c=1/3 b
b:d:e=6:5:4
d=5/6 b
a+b+c+d=2/3b+b+1/3b+5/6b=51
1/6 b(4+6+2+5)=51
17/6 b= 51
b= 51.6:17=18
e=(4/6).b=(2/3).18=12
Jawaban:
(B) 12
Penjelasan:
A : B : C = 2 : 3 : 1 (×2)
B : D : E = 6 : 5 : 4
A : B : C : D : E = 4 : 6 : 2 : 5 : 4
A + B + C + D = 51
Ax + Bx + Cx + Dx = 51
4x + 6x + 2x + 5x = 51
17x = 51
x = 3
maka nilai E = 3 × 4 = 12 ( B )
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a:b:c=2:3:1
a=2/3 b
c=1/3 b
b:d:e=6:5:4
d=5/6 b
a+b+c+d=2/3b+b+1/3b+5/6b=51
1/6 b(4+6+2+5)=51
17/6 b= 51
b= 51.6:17=18
e=(4/6).b=(2/3).18=12
Jawaban:
(B) 12
Penjelasan:
A : B : C = 2 : 3 : 1 (×2)
B : D : E = 6 : 5 : 4
A : B : C : D : E = 4 : 6 : 2 : 5 : 4
A + B + C + D = 51
Ax + Bx + Cx + Dx = 51
4x + 6x + 2x + 5x = 51
17x = 51
x = 3
maka nilai E = 3 × 4 = 12 ( B )