Question

Determinati suma cifrelor nenule a si b stiind ca ab6(barat)+3ab(barat)+b9a(barat)=1173

Answer 1

___ ___ ___ ab6 + 3ab + b9a =1173 100a+10b+6+300+10a+b+100b+90+a=1173 111a+111b+396=1173 111(a+b)=777 a+b=7

Answer 2

ab6 + 3ab + b9a =1173 100a+10b+6+300+10a+b+100b+90+a=1173 111a+111b+396=1173 111(a+b)=777 a+b=7