Question

Kelereng A:kelereng B : kelereng c=2:3:5 kelereng C 18 butir lebih banyak dari kelereng A tentukan kelereng mereka masing-masing

Answer 1

A : B : C = 2 : 3 : 5

A : C = 2 : 5
A = 2/5C

C = 18 + A
C = 18 + 2/5C
C - 2/5C = 18
5/5C - 2/5C = 18
3/5C = 18
C = 18 : 3/5
C = 18 × 5/3
C = 30

A = 2/5C
A = 2/5 × 30
A = 12

A : B = 2 : 3
B = 3/2A
B = 3/2 × 12
B = 18

Answer 2

Dik:
a:b:c = 2:3:5
c= 18 butir lebih byk dari kelereng a

c-a = 5-2=3

kelereng a
⅔×18 =12 kelereng

kelereng b
3/3×18=18 kelereng

kelereng c
5/3×18=30 kelereng

semoga benar (=^-ω-^=)


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