PARTIE B 1) Effectuer les opérations suivantes et donner le résultat sous la forme de fraction irréductible : \( \mathrm{A}=\left(\frac{1}{2}-\frac{11}{24}\right) \times\left(2-\frac{4}{3}\right) \) et \( B=\left(2-\frac{3-\frac{1}{3}}{3+\frac{1}{3}}\right):\left(1+\frac{1+\frac{3}{4}}{1-\frac{3}{4}}\right) \)

7. 63459 sayısındaki rakamiarın yerieri değiştirilerek yazılabilen 5 basamaklı sayıların kaçııın 5 ile bölümünden ka- lan 4 tür? \( \begin{array}{llll}\text { A) } 24 & \text { B) } 36 & \text { C) } 48\end{array} \)

23. Raúl gana \( \$ 1800 \) pesos a la semana, pero paga \( \frac{2}{5} \) de su sueldo para su viaje de graduo- ción; ¿cuánto dinero representa la fracción?

Round \( 5.34 \) to the nearest tenth.

Hockey is an 11 . a-side game, but a team may corsist of up to 16 players with uralimited substitutions allowod throughout a match of 70 minutes duration. foger captains the Buccancers hockey team. He has 16 players for today's match. Ho will play the whole match himsell, as will the goalkeeper. He intends to rotate all the other players in such a way that each of them spends the sarme rotal ampunt of time on the pitch. How ruich time should each player (werept foger and the goalkeeper) spend on the pitch during today's match?

13) What is \( 270 \% \) of 60 ? \( \begin{array}{ll}\text { 15) } 87 \% \text { of } 41 \text { is what? } & \text { 14) } 73 \% \text { of what is } 156.4 \text { ? } \\ \text { 17) What percent of } 88.6 \text { is } 70 ? & \text { 16) } 9 \text { is what percent of } 84 ?\end{array} \)