150 adults complete a survey. 80 are women. Write the ratio men : women in its simplest form.

Two tankers contain 600 litres and 570 litres of petrol respectively. Find the maximum capacity of the container which can measure the petrol of either tanker in exact number of times.

16. Jika Ibu Dian menyediakan uang Rp100.000,00 untuk persiapan pembelian buah di minggu ke-5, maka jumlah kembalian uang tbu Dian sebesar - \( \begin{array}{ll}\text { A. Rp } 67.000,00 & \text { D. Rp23.000,00 } \\ \text { B. Rp } 58.000,00 & \text { E. Rp18.000,00 }\end{array} \)

\begin{tabular}{l} Three mechanics worked \( 15 \frac{1}{2}, 14 \frac{3}{4}, 18 \frac{1}{8} \) hours respectively. What was the total \\ cost of labor if the mechanics were paid \( \$ 14.75 \) per hour? \\ \begin{tabular}{|l|l|l|l|l|}\hline Paragraph & B & \( I \) & \( \vdots \)\end{tabular} \\ \hline\end{tabular}

A sausage roll was offered for sale at \( \$ 1.94 \) at West Store. At East Store, the regular selling price of a similar sausage roll was \( \$ 2.16 \). What rate of markdow would East Store have to offer to sell the sausage roll at the same price as West Store? The rate of markdown is (Round the final answer to two decimal places as needed. Round all intermediate values to six decimal places as needed.)

2. \( (-6) \div 2+12-15-[(-3) \times 5]+(-6) \div 2= \) 3. \( 15-[(-3) \times 5]+(-6) \div 2=15= \)