Question

В КРУЖКЕ ХУДОЖЕСТВЕННОГО СЛОВА ЗАНИМАЮТСЯ ДЕВЯТЬ ДЕВОЧЕК И ВОСЕМЬ МАЛЬЧИКОВ. СКОЛЬКО ЕСТЬ СПОСОБОВ ВЫБОРА ПАРЫ ВЕДУЩИХ ШКОЛЬНОГО КОНЦЕРТА, СОСТОЯЩИЙ ИЗ ДЕВОЧКИ И МАЛЬЧИКА?

Answer 1

Вроде-бы 76 
 9 умножаем на 8 = 76 

Answer 2

Calculation of the Number of Ways to Choose a Pair of Leading Performers

To calculate the number of ways to choose a pair of leading performers for the school concert, we can use the concept of combinations.

In this case, we have 9 girls and 8 boys. We need to choose one girl and one boy to form a pair of leading performers.

The number of ways to choose one girl from 9 girls is given by the combination formula:

C(9, 1) = 9

Similarly, the number of ways to choose one boy from 8 boys is given by:

C(8, 1) = 8

To find the total number of ways to choose a pair of leading performers, we multiply these two combinations together:

Total number of ways = C(9, 1) * C(8, 1) = 9 * 8 = 72

Therefore, there are 72 ways to choose a pair of leading performers for the school concert.