MCQ
If $(27)^{999}$ is divided by $7$, then the remainder is
  • A
    $1$
  • B
    $2$
  • C
    $3$
  • $6$

Answer

Correct option: D.
$6$
d
$\frac{{28 - {1^{999}}}}{7} = \frac{{28\lambda  - 1}}{7}$

$ \Rightarrow \quad \frac{{28\lambda  - 7 + 7 - 1}}{7} = \frac{{7(4\lambda  - 1) + 6}}{7}$

$\therefore \quad \operatorname{Rem}=6$

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