Resposta :

100X                     617,7777

 10x                          61,7777

90x =                     556,0000

 

 

X = 556/90

X= 278/45

100X                     617,7777

 10x                          61,7777

90x =                     556,0000

 

 

X = 556/90

X= 278/45

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