Matnli masalalar (foiz, harakat, ish, aralashma) — test savollari javoblari bilan (3-sahifa)

Matematika · 27 ta ochiq savol (bankda jami 131 ta) · har birida to'g'ri javob va izoh
21. Narx avval $20\%$ ga oshdi, keyin $20\%$ ga tushdi. Dastlabki narxga nisbatan necha foiz o'zgargan?
  1. A) $0\%$
  2. B) $-4\%$
  3. C) $-2\%$
  4. D) $+4\%$
Javobni ko'rish

To'g'ri javob: B) $-4\%$

22. Omonatga yillik $12\%$ oddiy foiz hisoblanadi. $50000$ so'mlik omonat $3$ yilda qancha bo'ladi?
  1. A) $56000$
  2. B) $60000$
  3. C) $68000$
  4. D) $72000$
Javobni ko'rish

To'g'ri javob: C) $68000$

23. Mahsulot narxi ketma-ket $10\%$ va $20\%$ ga oshdi. Umumiy o'sish necha foiz?
  1. A) $30\%$
  2. B) $32\%$
  3. C) $28\%$
  4. D) $35\%$
Javobni ko'rish

To'g'ri javob: B) $32\%$

24. $40\%$ chegirmadan keyin narx $360$ so'm bo'ldi. Dastlabki narxni toping.
  1. A) $500$
  2. B) $600$
  3. C) $720$
  4. D) $900$
Javobni ko'rish

To'g'ri javob: B) $600$

25. Aholisi har yili $5\%$ ga ko'payadi. Hozir $10000$ kishi. $2$ yildan keyin necha kishi bo'ladi?
  1. A) $11000$
  2. B) $11025$
  3. C) $10500$
  4. D) $11050$
Javobni ko'rish

To'g'ri javob: B) $11025$

26. Narx $25\%$ ga oshdi. Endi dastlabki narxga qaytishi uchun necha foizga kamayishi kerak?
  1. A) $25\%$
  2. B) $20\%$
  3. C) $30\%$
  4. D) $22\%$
Javobni ko'rish

To'g'ri javob: B) $20\%$

27. Ishchi ish haqining $13\%$ ini soliq sifatida to'laydi. Qo'liga $26100$ so'm olsa, ish haqini toping.
  1. A) $28000$
  2. B) $29000$
  3. C) $30000$
  4. D) $32000$
Javobni ko'rish

To'g'ri javob: C) $30000$

Bu — mavzuning ochiq namuna qismi. To'liq bank, vaqt rejimi, tahlil va xatolar ustida ishlash — test rejimida.