Permutation and Combination – Page 11

Q58885-reposted-How-many-4-digit-numbers-abcd-exist-which-are-divisible-by-3-and-satisfy-a-b-c-d-

Tinku Tara June 4, 2023 Permutation and Combination 0 Comments

Question Number 59021 by mr W last updated on 03/May/19 $[Q 58885 r e p o s t e d]$ $H o w m a n y 4 - d i g i t n u m b e r s a b c d e x i s t$ $w h i c h a r e d i v i s i b l e b y 3 a n d s a t i s f y$ $a ⩽ b ⩽ c ⩽ d ?$ Commented by tanmay last updated on…

How-many-six-digit-numbers-contain-exactly-three-different-digits-

Tinku Tara June 4, 2023 Permutation and Combination 0 Comments

Question Number 124400 by mr W last updated on 03/Dec/20 $H o w m a n y s i x - d i g i t n u m b e r s c o n t a i n$ $e x a c t l y t h r e e d i f f e r e n t d i g i t s ?$ Answered by benjo_mathlover last updated on 03/Dec/20 $${XXXWYZ}\:=\:\mathrm{9}×{C}_{\:\mathrm{3}} ^{\:\mathrm{9}} \:×\:\frac{\mathrm{6}!}{\mathrm{3}!}…

How-many-six-digit-numbers-contain-exactly-six-different-digits-

Tinku Tara June 4, 2023 Permutation and Combination 0 Comments

Question Number 124372 by mr W last updated on 02/Dec/20 $H o w m a n y s i x - d i g i t n u m b e r s c o n t a i n$ $e x a c t l y s i x d i f f e r e n t d i g i t s ?$ Answered by bemath last updated on 02/Dec/20 $$=\:\mathrm{9}×{P}_{\mathrm{5}} ^{\:\mathrm{9}} \:=\:\mathrm{9}×\frac{\mathrm{9}!}{\mathrm{4}!}…

How-many-6-digit-odd-numbers-have-different-digits-

Tinku Tara June 4, 2023 Permutation and Combination 0 Comments

Question Number 124237 by mr W last updated on 01/Dec/20 $H o w m a n y 6 d i g i t o d d n u m b e r s h a v e$ $d i f f e r e n t d i g i t s ?$ Commented by mr W last updated on 02/Dec/20 $$\mathrm{5}×\left({P}_{\mathrm{5}} ^{\mathrm{9}}…

Question-124173

Tinku Tara June 4, 2023 Permutation and Combination 0 Comments

Question Number 124173 by bramlexs22 last updated on 01/Dec/20 Answered by bobhans last updated on 01/Dec/20 $(1 + k x) {(1 - 2 x)}^{5} = (1 + k x) [\underset{n = 0}{\sum^{5}} C_{n}^{5} {(- 2 x)}^{5 - n}]$ $$=\left(\mathrm{1}+{kx}\right)\left({C}_{\mathrm{3}}…

Question-189614

Tinku Tara June 4, 2023 Permutation and Combination 0 Comments

Question Number 189614 by Rupesh123 last updated on 19/Mar/23 Answered by Frix last updated on 19/Mar/23 $a = 2 m - 1 \land 1 ⩽ m ⩽ 14 \land b = 2 n - 1 \land m + 1 ⩽ n ⩽ 15$ $a = 2 m \land 1 ⩽ m ⩽ 14 \land b = 2 n \land m + 1 ⩽ n ⩽ 15$ $2 \underset{k = 1}{\sum^{14}} k = 210$ …

Find-the-coefficient-of-x-6-in-2x-1-6-x-2-x-1-4-4-

Tinku Tara June 4, 2023 Permutation and Combination 0 Comments

Question Number 58373 by Tawa1 last updated on 22/Apr/19 $Find the coefficient of x^{6} in {(2 x + 1)}^{6} {(x^{2} + x + \frac{1}{4})}^{4}$ Commented by maxmathsup by imad last updated on 24/Apr/19 $${we}\:{have}\:\left(\mathrm{2}{x}+\mathrm{1}\right)^{\mathrm{6}}…

Nine-chairs-in-a-row-are-to-be-occupied-by-six-students-and-Prof-George-Prof-Pieter-and-Prof-John-These-three-professors-arrive-before-the-six-students-and-decide-to-choose-their-chairs-so-that-ea

Tinku Tara June 4, 2023 Permutation and Combination 0 Comments

Question Number 123878 by liberty last updated on 29/Nov/20 $N i n e c h a i r s i n a r o w a r e t o b e o c c u p i e d b y$ $s i x s t u d e n t s a n d P r o f G e o r g e, P r o f P i e t e r,$ $a n d P r o f J o h n . T h e s e t h r e e p r o f e s s o r s a r r i v e$ $b e f o r e t h e s i x s t u d e n t s a n d d e c i d e t o c h o o s e$ $t h e i r c h a i r s s o t h a t e a c h p r o f e s s o r w i l l b e b e t w e e n$ $t w o s t u d e n t s . I n h o w m a n y w a y s c a n P r o f e s s o r G e o r g e$ $, P i e t e r a n d J o h n c h o o s e t h e i r c h a i r s ?$ Answered…

There-are-how-many-ways-to-answer-5-out-of-7-multiple-choice-question-with-5-choices-

Tinku Tara June 4, 2023 Permutation and Combination 0 Comments

Question Number 123695 by pipin last updated on 27/Nov/20 $There are how many ways to answer$ $5 out of 7 multiple choice question with$ $5 choices ?$ Answered by mr W last updated on 27/Nov/20 $${C}_{\mathrm{5}}…

Question-58049

Tinku Tara June 4, 2023 Permutation and Combination 0 Comments

Question Number 58049 by Aditya789 last updated on 17/Apr/19 Terms of Service Privacy Policy Contact: info@tinkutara.com

Category: Permutation and Combination