Here are the solutions to the questions: 15. There are 132 learners in a class. If $\frac{2}{3}$ of the learners are girls, how many boys are in the class? Step 1: Find the fraction of boys in the class. If $\frac{2}{3}$ of the learners are girls, then the remaining fraction are boys. $$ \text{Fraction of boys} = 1 - \frac{2}{3} = \frac{3}{3} - \frac{2}{3} = \frac{1}{3} $$ Step 2: Calculate the number of boys. Multiply the total number of learners by the fraction of boys. $$ \text{Number of boys} = \frac{1}{3} \times 132 $$ $$ \text{Number of boys} = \frac{132}{3} $$ $$ \text{Number of boys} = 44 $$ The correct option is D. \boxed{\text{D. 44}} 16. In a school, 40% of the learners like French. If there are 120 learners in the school, find the number of learners who like French. Step 1: Convert the percentage to a decimal or fraction. $$ 40\% = \frac{40}{100} = 0.4 $$ Step 2: Calculate the number of learners who like French. Multiply the total number of learners by the percentage who like French. $$ \text{Number of learners who like French} = 0.4 \times 120 $$ $$ \text{Number of learners who like French} = 48 $$ The correct option is C. \boxed{\text{C. 48}} 17. If 50kg of rice cost 500 cedis. What is the cost per kilogram of rice? Step 1: Divide the total cost by the total quantity to find the cost per kilogram. $$ \text{Cost per kilogram} = \frac{\text{Total cost}}{\text{Total quantity}} $$ $$ \text{Cost per kilogram} = \frac{500 \text{ cedis}}{50 \text{ kg}} $$ $$ \text{Cost per kilogram} = 10 \text{ cedis/kg} $$ The correct option is B. \boxed{\text{B. Gh¢10}} Last free one today — make it count tomorrow, or type /upgrade for unlimited.