Mixed problems containing base, rate and percentage 1. A student scored 16 out of 25 in mathematics mid exam. What is the student's score in percent? \( 64 \% \) (2. There are 50 students in a class. If \( 8 \% \) are absent on a particular day, find the number of students present in the class. In a basket of oranges, \( 20 \% \) of them are defective and 76 are in good conditi Find the total number of oranges in the basket.

Let's solve each problem step by step. 1. A student scored 16 out of 25 in a math exam. To find the percentage score, use the formula:   Percentage = (Score/Total) × 100   Percentage = (16/25) × 100 = 0.64 × 100 = 64% So, the student's score is 64%. 2. There are 50 students in the class and 8% are absent. First, find the number of students absent:   Absent students = 8% of 50 = 0.08 × 50 = 4 Then, the number of students present is:   Present students = 50 − 4 = 46 Thus, 46 students are present. 3. In a basket of oranges, 20% are defective, meaning that 80% are in good condition. It's stated that there are 76 oranges in good condition. Let T be the total number of oranges. Then:   80% of T = 76   0.8T = 76 Solve for T:   T = 76 ÷ 0.8 = 95 Therefore, the total number of oranges in the basket is 95. Summary of Answers: 1. 64% 2. 46 students present 3. 95 oranges total