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(2) Zaldagi qizlar sonining o'g'il bolalar soniga nisbati \( 7: 5 \). Zaldagi o'g'il bolalar 50 nafar bo'lsa, qizlar nechta?

Ask by Burns Fuentes. in Uzbekistan
Feb 03,2025

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Zaldagi qizlar soni 70 ta.

Solution

Zaldagi qizlar sonining o'g'il bolalar soniga nisbati \( 7:5 \) bo'lsa va o'g'il bolalar soni 50 ta bo'lsa, qizlar sonini topish uchun quyidagi hisoblashlarni amalga oshiramiz: 1. **Nisbati tushunish:** Qizlar soni : O'g'il bolalar soni = 7 : 5 2. **O'g'il bolalar soni ma'lum:** O'g'il bolalar soni = 50 ta 3. **Qizlar sonini hisoblash:** \[ \text{Qizlar soni} = \left(\frac{7}{5}\right) \times 50 = 70 \] **Natija:** Zaldagi qizlar soni **70 ta**.

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Zaldagi qizlar sonining o'g'il bolalar soniga nisbati \( 7: 5 \) ekanini bilamiz. Agar o'g'il bolalar soni 50 bo'lsa, bu nisbatni hisobga olib, qizlar sonini topish mumkin. Qizlar sonini \( x \) deb belgilasak, nisbatga ko'ra \( \frac{x}{50} = \frac{7}{5} \) bo'ladi. Bu tenglamani yechish orqali, \( x = \frac{7}{5} \times 50 = 70 \) ga teng ekanini ko'ramiz. Demak, zaldagi qizlar soni 70 ta. Javob: Zaldagi qizlar soni 70 ta.

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