Category: Permutation and Combination

Question Number 206156 by cortano21 last updated on 08/Apr/24 Commented by mr W last updated on 08/Apr/24 $$whatithinkisclear:$$$$inthepackagetheremustbeexactly$$$$oneegg.theremustbeatleastthree$$$${lettuces}.\:{there}\:{must}\:{be}\:{at}\:{least}\:{one} \…

Question Number 205683 by cortano12 last updated on 27/Mar/24 $$$$ Commented by mr W last updated on 27/Mar/24 $$1632\times 3!=9792$$$$alloptionsgivenarewrong.$$…

Question Number 204246 by Tutormalvis last updated on 09/Feb/24 $$\mathrm{l}\rfloor \mathrm{\infty }$$ Terms of Service Privacy Policy Contact: info@tinkutara.com

Question Number 203832 by depressiveshrek last updated on 29/Jan/24 $$\mathrm{How}\mathrm{many}\mathrm{bit}\mathrm{strings}\mathrm{of}\mathrm{length}10\mathrm{do}\mathrm{not}$$$$\mathrm{have}\mathrm{four}\mathrm{consecutive}1\mathrm{s}?$$ Answered by nikif99 last updated on 30/Jan/24 $$Totalnumberofbitstringsoflength10$$$${is}\:\mathrm{2}^{\mathrm{10}} =\mathrm{1024}\:\left(\mathrm{0}−\mathrm{1023}\right).…

Question Number 202584 by cortano12 last updated on 30/Dec/23 $$$$ Answered by dimentri last updated on 30/Dec/23 $$2\left(\begin{array}{c}\mathrm{m}\\ 2\end{array}\right)-4\mathrm{m}=84$$$${\mathrm{m}}^2-5\mathrm{m}-84=0$$$$\:\mathrm{m}\:=\:\mathrm{12}\:…