Permutation and Combination – Page 19

Q-In-how-many-ways-8-students-can-be-divided-into-two-equal-groups-Ans-8-2-4-2-here-why-two-factorial-is-divided-we-do-not-do-the-same-incase-of-distributing-52-cards-equally-

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Question Number 51779 by aseerimad last updated on 30/Dec/18 $Q = I n h o w m a n y w a y s 8 s t u d e n t s c a n b e d i v i d e d i n t o t w o e q u a l g r o u p s ?$ $A n s = \frac{8!}{2! \times {(4!)}^{2}}$ $h e r e w h y t w o f a c t o r i a l i s d i v i d e d ?$ $w e d o n o t d o t h e s a m e i n c a s e o f d i s t r i b u t i n g 52 c a r d s e q u a l l y a m o n g 4 p e r s o n s .$ $${pls}\:{explain}……

In-how-many-different-ways-can-we-select-5-numbers-from-9-numbers-1-2-3-9-A-number-may-be-selected-more-than-one-time-

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Question Number 117281 by mr W last updated on 10/Oct/20 $I n h o w m a n y d i f f e r e n t w a y s c a n w e$ $s e l e c t 5 n u m b e r s f r o m 9 n u m b e r s$ ${1, 2, 3, \dots, 9} ?$ $A n u m b e r m a y b e s e l e c t e d m o r e t h a n$ $o n e t i m e .$ Answered by PRITHWISH SEN…

Suppose-now-that-Allie-is-actually-70-years-old-and-that-her-life-expectancy-if-cured-is-12-years-rather-than-20-Which-procedure-now-has-the-greather-expected-value-What-if-her-life-expectancy

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Question Number 182793 by cortano1 last updated on 14/Dec/22 $S u p p o s e n o w t h a t A l l i e i s a c t u a l l y$ $70 y e a r s o l d, a n d t h a t h e r l i f e e x p e c t a n c y$ $(i f c u r e d) i s 12 y e a r s r a t h e r t h a n$ $20 . W h i c h p r o c e d u r e n o w h a s t h e$ $g r e a t h e r e x p e c t e d v a l u e ? W h a t i f h e r$ $l i f e e x p e c t a n c y i s 8 y e a r s ?$ Terms of Service…

Assuming-you-have-enough-coins-of-1-5-10-25-and-50cents-In-how-many-ways-can-you-make-a-change-for-1dollar-

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Question Number 117192 by Lordose last updated on 10/Oct/20 $Assuming you have enough coins$ $of 1, 5, 10, 25, and 50 cents . In how$ $many ways can you make a change for 1 dollar .$ Answered by mr W last updated on 10/Oct/20 $${a}+\mathrm{5}{b}+\mathrm{10}{c}+\mathrm{25}{d}+\mathrm{50}{e}=\mathrm{100}…

If-two-events-A-and-B-are-such-that-P-A-c-0-3-P-B-0-4-and-P-A-B-c-0-5-then-P-B-A-B-c-A-0-20-B-0-25-C-0-30-D-0-35-

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Question Number 182695 by cortano1 last updated on 13/Dec/22 $If two events A and B are such$ $that P (A^{c}) = 0.3; P (B) = 0.4 and$ $P (A \cap B^{c}) = 0.5 then P (\frac{B}{A \cup B^{c}}) = ?$ $(A) 0.20 (B) 0.25 (C) 0.30 (D) 0.35$ Commented by…

Question-51465

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Question Number 51465 by mr W last updated on 27/Dec/18 Commented by Rasheed.Sindhi last updated on 27/Dec/18 $S i r 4 - d i g i t n u m b e r s I t h i n k ?$ Commented by mr W last…

Find-the-number-m-of-non-negative-integer-solution-of-x-y-z-18-

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Question Number 116881 by bemath last updated on 07/Oct/20 $Find the number m of non negative$ $integer solution of x + y + z = 18$ Answered by john santu last updated on 07/Oct/20 $${we}\:{can}\:{view}\:{each}\:{solution}\:,{say}\:{x}=\mathrm{3},\:{y}=\mathrm{7}\:,{z}=\mathrm{8}…

Find-the-number-m-of-ways-to-partition-10-students-into-four-team-so-that-two-team-contains-3-students-and-two-team-contains-2-students-

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Question Number 116883 by bemath last updated on 07/Oct/20 $Find the number m of ways to$ $partition 10 students into four team$ $so that two team contains 3 students$ $and two team contains 2 students .$ Answered by john santu last updated on…

Question-51286

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Question Number 51286 by aseerimad last updated on 25/Dec/18 Answered by mr W last updated on 26/Dec/18 $T y p e 1 :$ $N u m b e r o f w o r d s s t a r t i n g w i t h D :$ $= \frac{7!}{2!} = 2520$ $$ \…

Question-51287

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Question Number 51287 by aseerimad last updated on 25/Dec/18 Answered by mr W last updated on 26/Dec/18 ${l e t}^{'} s l o o k a t a n e x a m p l e :$ $t h e n u m b e r 1234 c o n s i s t s o f 4 d i g i t s :$ $1 r e p r e s e n t s h e r e t h e v a l u e 1 \times 1000$ $$\mathrm{2}\:{represents}\:{here}\:{the}\:{value}\:\mathrm{2}×\mathrm{100} \…

Category: Permutation and Combination