Question

В классе 21 ученик. 40% из них получили пятёрки. Сколько учеников получило пятёрки.

Answer 1

Неправильное условие
21*40):100=8,4
не будет же половина ученика

Answer 2

Calculating the Number of Students Who Received the Highest Grade

To calculate the number of students who received the highest grade, we can use the following formula:

Number of students who received the highest grade = Total number of students × Percentage of students who received the highest grade

Given that there are 21 students in the class and 40% of them received the highest grade, we can calculate the number of students who received the highest grade using the formula:

Number of students who received the highest grade = 21 × 40%

Calculation

Using the formula, we can calculate the number of students who received the highest grade:

Number of students who received the highest grade = 21 × 40% = 21 × 0.40 = 8.4

As the number of students must be a whole number, we can conclude that 8 students received the highest grade.

Therefore, 8 students received the highest grade in the class.