Question

Si abc x 999=...237 , halla a+b+c​

Answer 1

abc(999)

abc(1000 - 1)

abc000 - abc = ...237

Resolvemos:

 abc000   _

        abc

_______

........  237

10 - c = 7   → c = 3

9 - b = 3    → b = 6

9 - a = 2    → a = 7

Piden a + b + c

7 +6 + 3 = 16

RESPUESTA: 16