Division

The division has 18 members: 10 girls and six boys, two leaders. How many different patrols can be created if one patrol is two boys, three girls, and one leader?

Correct answer:

n =  600

Step-by-step explanation:

$n=((6\cdot 5\mathrm{/}2)\cdot (10\cdot 9\cdot 8\mathrm{/}6)\cdot 2)\mathrm{/}6=600$

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