Birinchi oyoq kiyim 10$, ikkinchisi 20$ dan sotilmoqda. Ularning umumiy soni 18 ta bo‘lib, birinchisi ikkinchisidan 4 taga kam bo‘lsa har biri uchun umumiy narxini toping.

  1. 1-80$; 2-200$
  2. 1-70$; 2-220$
  3. 1-110$; 2-140$
  4. 1-va 2-160$ dan

📝 Detailed explanation

x+y=18, x=y−4. Demak 2y=22, y=11, x=7. Birinchi tur narxi: 7·10=70$. Ikkinchi tur narxi: 11·20=220$.
3 / 10 (30%)
Question 3 of 10
← Previous → Next Space — Show answer

🎯 Take a test on the topic «1 variant | matematika - majburiy fanlar bloki»

This topic contains 10 questions. Test your knowledge!

🔐 Log in to take the test

📚 All tests by subject «Matematika»

View all collections and topics in Matematika

Go to subject →

Report an error

Answers are unavailable

This test collection is closed. To get full access, please purchase 🌟 premium

Contact by email