Qopning ichida 3; 5; 9; 21; 15; 14 va 7 raqamlik sharchalar bor. Tavakkaliga tanlangan sharchaning raqami 21 ning bo'luvchisi bo'lish ehtimolini aniqlang.

  1. ³/₇
  2. ²/₇
  3. ⁴/₇
  4. ¹/₇

📝 Detailed explanation

Jami sharchalar soni 7 ta. 21 ning bo'luvchilari bo'lgan sharchalar: 3, 21 va 7 (jami 3 ta). Ehtimollik: ³/₇.
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