Sinfda 15 ta o'g'il bola, 20 ta qiz bola o'qiydi. Tavakkaliga tanlangan o'quvchining qiz bola bo'lish ehtimolini aniqlang.

³/₇
⁴/₇
⁵/₇
⁶/₇

📝 Detailed explanation

Jami o'quvchilar soni: 15 + 20 = 35. Qizlar soni: 20. Ehtimollik: 20 / 35 = 4 / 7.

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