Question Number 32424 by Tinkutara last updated on 24/Mar/18
Answered by mrW2 last updated on 24/Mar/18
$$\frac{\mathrm{6}!}{\mathrm{2}!\mathrm{2}!}−\mathrm{2}×\left(\frac{\mathrm{5}!}{\mathrm{2}!}−\mathrm{4}!\right)−\mathrm{4}!=\mathrm{84} \\ $$$$\Rightarrow{answer}\:\left(\mathrm{3}\right) \\ $$
Commented by Tinkutara last updated on 25/Mar/18
Thanks! I got it. ��������