perbandingan senilai
kelereng Ali = x
kelereng Andi = y
x : y = 3 : 2
jumlah kelereng mereka = 30 buah
Selisih kelereng mereka
= jumlah kelereng × (x - y)/(x + y)
= 30 × (3 - 2)/(3 + 2)
= 30 × 1/5
= 6 buah
•
cara lain
x : y = 3a : 2a
jumlah kelereng mereka = 30
3a + 2a = 30
5a = 30
a = 30/5
a = 6
selisih kelereng
= 3a - 2a
= a
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perbandingan senilai
kelereng Ali = x
kelereng Andi = y
x : y = 3 : 2
jumlah kelereng mereka = 30 buah
Selisih kelereng mereka
= jumlah kelereng × (x - y)/(x + y)
= 30 × (3 - 2)/(3 + 2)
= 30 × 1/5
= 6 buah
•
cara lain
x : y = 3a : 2a
jumlah kelereng mereka = 30
3a + 2a = 30
5a = 30
a = 30/5
a = 6
selisih kelereng
= 3a - 2a
= a
= 6 buah