Respostas

2014-05-15T12:47:00-03:00
19.840 / 62 = 320.

Resp 19.840
1 5 1
2014-05-15T12:56:30-03:00
 \frac{x}{62} =320 \\ 
x=320.62 \\ 
x= 19840

Espero ter ajudado, bons estudos ;)