A group of 120 students were asked how old they were when they lost their first tooth. 50% said they were 7 years old. How many students said they were 7 years old when they lost their first tooth? Explain.

Answer 1

To find out how many students said they were 7 years old when they lost their first tooth, we can calculate 50% of the total group of 120 students.

1. Calculate 50% of 120: \[ 50% \text{ of } 120 = \frac{50}{100} \times 120 = 0.5 \times 120 = 60 \]

Therefore, 60 students said they were 7 years old when they lost their first tooth.