Penjelasan dengan langkah-langkah:
umur kakek 70 thn
1/2 =0.5
kali umur kakek
0.5 x 70 = 35 umur ayah
35 x 2/7
70/7 = 10 umur ben
jadi umur ben 10 thn
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Penjelasan dengan langkah-langkah:
umur kakek 70 thn
1/2 =0.5
kali umur kakek
0.5 x 70 = 35 umur ayah
35 x 2/7
70/7 = 10 umur ben
jadi umur ben 10 thn