Question and Answers Forum

All Questions   Topic List

Permutation and CombinationQuestion and Answers: Page 7

Question Number 155109    Answers: 1   Comments: 0

$$\mathrm{how}\mathrm{many}\mathrm{terms}\mathrm{contain}‘‘{\mathrm{ab}}^2{\mathrm{c}}^3{}^{″}\mathrm{in}{(\mathrm{a}+2\mathrm{b}+3\mathrm{c}+{4\mathrm{d}}^2+{5\mathrm{e}}^3)}^{10}?$$

Question Number 155075    Answers: 1   Comments: 4

Question Number 155257    Answers: 1   Comments: 5

Question Number 154287    Answers: 0   Comments: 0

Question Number 154268    Answers: 0   Comments: 3

Question Number 153714    Answers: 2   Comments: 0

$$\mathrm{How}\mathrm{many}\mathrm{three}-\mathrm{digit}\mathrm{numbers}\mathrm{can}\mathrm{be}$$$$\mathrm{formed}\mathrm{using}\mathrm{the}\mathrm{digits}2,3,5,7,8\mathrm{if}$$$$\mathrm{the}\mathrm{number}\mathrm{is}\mathrm{odd}\mathrm{and}\mathrm{no}\mathrm{digit}\mathrm{is}\mathrm{repeted}?$$

Question Number 153220    Answers: 1   Comments: 0

$$$$$$\mathrm{in}\mathrm{how}\mathrm{many}\mathrm{ways}\mathrm{can}\mathrm{the}\mathrm{number}$$$$n\mathrm{be}\mathrm{written}\mathrm{as}\mathrm{a}\mathrm{sum}\mathrm{of}\mathrm{three}\mathrm{positive}$$$$\mathrm{integers}\mathrm{if}\mathrm{representations}\mathrm{differing}$$$$\mathrm{in}\mathrm{the}\mathrm{order}\mathrm{of}\mathrm{the}\mathrm{terms}\mathrm{are}\mathrm{considered}$$$$\mathrm{to}\mathrm{be}\mathrm{different}?$$$$$$

Question Number 153216    Answers: 0   Comments: 1

Question Number 153181    Answers: 0   Comments: 2

Question Number 153182    Answers: 0   Comments: 2

Question Number 153174    Answers: 0   Comments: 1

Question Number 153173    Answers: 2   Comments: 1

Question Number 153057    Answers: 1   Comments: 0

Question Number 152536    Answers: 1   Comments: 2

$$\mathrm{How}\mathrm{many}\mathrm{zeroes}\mathrm{are}\mathrm{there}\mathrm{in}99!$$

Question Number 151832    Answers: 3   Comments: 0

Question Number 151828    Answers: 2   Comments: 0

Question Number 151823    Answers: 2   Comments: 0

Question Number 151615    Answers: 1   Comments: 0

$$\mathrm{How}\mathrm{many}\mathrm{numbers}\mathrm{greater}\mathrm{than}200\mathrm{can}$$$$\mathrm{be}\mathrm{formed}\mathrm{from}\mathrm{the}\mathrm{digits}1,2,3,4,5\mathrm{if}\mathrm{no}$$$$\mathrm{digit}\mathrm{is}\mathrm{to}\mathrm{be}\mathrm{repeated}\mathrm{in}\mathrm{any}\mathrm{particular}$$$$\mathrm{number}?$$$$$$

Question Number 151485    Answers: 1   Comments: 0

Question Number 150859    Answers: 0   Comments: 0

Question Number 150554    Answers: 1   Comments: 0

$$\mathrm{Show}\mathrm{that}{\mathrm{n}}_{{\mathrm{C}}_{\mathrm{r}}}=\frac{\mathrm{n}(\mathrm{n}-1)(\mathrm{n}-2)...(\mathrm{n}-\mathrm{r}+1)}{\mathrm{r}!}$$

Question Number 149955    Answers: 1   Comments: 0

$$\mathrm{If}\mathrm{a}\mathrm{group}\mathrm{consist}\mathrm{of}8\mathrm{men}\mathrm{and}6\mathrm{women},$$$$\mathrm{in}\mathrm{how}\mathrm{many}\mathrm{ways}\mathrm{can}\mathrm{a}\mathrm{committee}\mathrm{of}$$$$5\mathrm{be}\mathrm{selected}\mathrm{if}:$$$$\mathrm{i})\mathrm{the}\mathrm{committee}\mathrm{is}\mathrm{to}\mathrm{consist}\mathrm{of}3\mathrm{men}$$$$\mathrm{and}3\mathrm{women}.$$$$\mathrm{ii})\mathrm{there}\mathrm{are}\mathrm{no}\mathrm{restrictions}\mathrm{on}\mathrm{the}$$$$\mathrm{number}\mathrm{of}\mathrm{men}\mathrm{and}\mathrm{women}\mathrm{on}\mathrm{the}$$$$\mathrm{committee}.$$$$\mathrm{iii})\mathrm{at}\mathrm{least}\mathrm{one}\mathrm{man}$$

Question Number 149595    Answers: 2   Comments: 1

Question Number 149439    Answers: 1   Comments: 1

Question Number 149437    Answers: 1   Comments: 1

Question Number 148835    Answers: 1   Comments: 0

  Pg 2      Pg 3      Pg 4      Pg 5      Pg 6      Pg 7      Pg 8      Pg 9      Pg 10      Pg 11   

Terms of Service

Privacy Policy

Contact: info@tinkutara.com