If $x$ be real, the least value of ${x^2} - 6x + 10$ is

  • A

    $1$

  • B

    $2$

  • C

    $3$

  • D

    $10$

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Let $a$ ,$b$, $c$ , $d$ , $e$ be five numbers satisfying the system of equations

                            $2a + b + c + d + e = 6$
                            $a + 2b + c + d + e = 12$
                            $a + b + 2c + d + e = 24$
                            $a + b + c + 2d + e = 48$
                            $a + b + c + d + 2e = 96$ ,

then $|c|$ is equal to