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Playing with Numbers — MATHS STD 8 — Question

Gujarat BoardEnglish MediumSTD 8MATHSPlaying with Numbers1 Mark
MCQ
Mark $(\checkmark)$ against the correct answer: If $486*7$ is divisible by $9,$ then the least value of $*$ is:
  • A
    $0$
  • B
    $1$
  • C
    $3$
  • ✓
    $2$
✓

Answer

Correct option: D.
$2$
For a number to be divisible by $9,$ the sum of its digits must be divisible by $9.$
$4 + 8 + 6 + * + 7 = 25 + *$
Now,
$25 + * = 27($If $* = 2$ and $27$ is divisible by $9)$

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