1 Hanna menulis tiga digit yang terbesar dalam asas empat pada sekeping kad. Jennie diminta menukarnya kepada nombor dalam asas lima. Apakah nombor yang Jennie peroleh? Hanna wrote the greatest three-digit number in base four on a card. Jennie is asked to convert it to a number in base five. What is the mumber that Jennie gets? A \( 332_{2} \) B 3225 C 2325 D 2235

83 Найдите произведение: \( \begin{array}{l}\text { а) } \frac{4}{9} \cdot \frac{9}{7} \cdot \frac{7}{17} \cdot \frac{17}{28} ;\end{array} \)

4. Malt and Lionel left their houses at the same time and drove in they respective cars to the city which was 200 km away. When Matt reached the city. Lionel still had 50 km more to travel. Lionel finally completed the journey 36 minutes later. How long did Lionel take to drive to the city?

Exercise 4.1 1 Work out the highest common factor (HCF) of \( \begin{array}{ll}\text { a } 8 \text { and } 12 & \text { b } 6 \text { and } 15 \\ \text { c } 7 \text { and } 35 & \text { d } 24 \text { and } 40\end{array} \) \( \begin{array}{l}2 \text { Which fraction is larger in each pair? }\end{array} \)

3. (a5-g18-14) Ko'p qavatli uyning 4 - qavatigacha bo'lgan masofa 12 metr. Shu uyning 12 -qavatigacha bo'lgan masofa necha metr? \( \begin{array}{llll}\text { A) } 48 & \text { B) } 44 & \text { C) } 36 & \text { D) } 33\end{array} \)

4. (a5-g13-12) Tashkilotdagi ishchilaming \( 2 / 3 \) qismi ayollar. Erkak ishchilaming 315 qismi oilali va 12 nafari uylanmagan bolla, tashkilotda nechta ishchi ishlamoqda? \( \begin{array}{llll}\text { A) } 90 & \text { B) } 72 & \text { C) } 60 & \text { D) } 50\end{array} \)