Jawabanmu

2014-01-16T20:31:56+07:00
Umur ayah : \frac{7}{6}   × 30 = 35
umur anak :  \frac{1}{6}  × 30 = 5
2014-01-16T20:36:55+07:00
Ayah 
x 30 = 35 th 
6

anak
1 x 30 = 5 th
6