9000139705 | math4u.vsb.cz

SubArea:

Level:

Project ID:

9000139705

Source Problem:

Accepted:

1

Clonable:

1

Easy:

0

From the group of

10

boys and

5

girls we have to select a small group of

3

boys and

2

girls. How many possibilities exist for this choice?

\frac{10!}{7! 3!} \cdot \frac{5!}{3! 2!} = 1 200

5^{10} = 9 765 625

10 \cdot 5! 3! = 7 200

5 \cdot \frac{10!}{3!} = 3 024 000