Respuestas

2012-08-23T18:03:42+02:00

Ju/Jo = 8/5                                                      Ju = Juan

Ju - Jo = 12                                                      Jo = José

 

Jo = 5Ju/8

 

=> 8Ju/8 - 5Ju/8 = 12

 

     3Ju/8 = 12

 

Ju = 12 * 8 / 3

=> Ju = 32 años

2012-08-23T23:39:03+02:00

Juan=8k

Jose=5k

 

8k-5k=12

3k=12

k=4

 

entonces juan=8(4)=32