Question

30abc : abc = 241

Answer 1

Ta có

( 30 x 1000 + abc ) : abc = 241

30 x 1000 + abc = 241 x abc

30 x 1000 = 240 x abc

30 000 = 240 x abc

30 000 : 240 = abc

125 = abc

Answer 2

30abc:abc=241

30abc      =241*abc

30000+abc=241*abc

30000=240*abc

abc=30000:240

abc=125

Answer 3

30abc : abc =241 hay

(30000+abc) : abc =241

30000 :abc+ abc :abc=241

30000:abc+1=241

30000:abc=241-1

30000:abc=240

abc=30000:240

abc=125