Question

Tìm abc  biết : abc + ab,c + a,bc + 0,abc = 163,317

Làm nhanh nha .

Answer 1

abc + abc x 0,1 + abc x 0,01 + abc x 0 ,001 = 163,317

abc x (1 + 0,1 + 0,01 + 0,001) =163,317

abc x 1,111 = 163,317

abc = 163,317 : 1,111

abc = 147

Answer 2

\(abc+ab,c+a,bc+0,abc=163,137\)

\(\Rightarrow abc+abc\times0,1+abc\times0,01+abc\times0,001=163,317\)

\(\Rightarrow abc\left(1+0,1+0,01+0,001\right)=163,317\)

\(\Rightarrow abc=163,317:1,111\)

\(\Rightarrow abc=147\)

Answer 3

abc + ab,c +a,bc +0,abc =163,317

<=>abcx(1+0,1+0,11+0,111)=163,317

<=>abcx 1,321 =163,317

<=> abc= 163,317:1,321

<=>abc=123,6313399