Jawabanmu

Jawaban paling cerdas!
2014-04-24T05:00:49+07:00
*a:b = 2:3 *b:c = 4:5 *didapat a:b:c = 8:12:15 *jmlah 70 * a= 8/8+12+15 × 70 = 16 th *b = 12/35 ×70 = 24th *c = 15/35 ×70 = 30th
2014-04-24T09:29:55+07:00
A =16 tahun
B=24 tahun
C=15 tahun