In how many ways can 4 boys and 3 girls be arranged in a row if...| Jerryco Jaurigue

In how many ways can 4 boys and 3 girls be arranged in a row if...| Jerryco Jaurigue
In how many ways can 4 boys and 3 girls be arranged in a row if:
there are no restrictions?
boys and girls must be seated alternately?
boys must be seated together?
two particular students insist on seating together?
two particular students refuse to seat together?

[@daniellekristianbjorksui9164]

0:00 *Example 12*
1:11 *Example 12 (A)*
2:57 *Example 12 (B)*
4:18 *Example 12 (C)*
6:00 *Example 12 (D)*

[@princemjprasanth8954]

Thanks for the helpful tutorial bro!

[@arinzeanthony7447]

My answer for D is (case a)-(case c) = 5040-1440
= 3600 ways.
Is that correct?

[@khantnaingwin5238]

very very very very very fucking thanks to you, boiiiiiii. ohhh shit this saves my life

[@kushagrasingh7479]

Tomorrow is my exam and I wasn’t able to solve this question(similar one ) but thanks to you I got the concept. Keep up the good work 👍

[@jerrycojaurigue772]

Happy to help! You will still encounter similar questions in the future and for sure, you will get that one. All the best.

[@judezaarandilla9461]

Sir, ano pong formula ng c? yan na po yan?

[@justinekurltrio4041]

d) total po nila minus sa answer sa letter c.
7!-6!×2!

[@peakathleticsperformance]

wow!

[@drnand004]

2:27 Is wrong.
It is _ B _ B_ B_B_
Girls can sit any 3 Blanks since it's in a row.
If it was a circle u are right

[@nahhan115]

hay naku

[@zeyadahmed5489]

If they (girls) sit in positions 1,3,5 then the last 2 boys will be next to each other which is incorrect. So 144 is the correct answer.

[@agilanamarnath7713]

@@zeyadahmed5489 No…U r wrong…this qns depends on how many ways cn they sit….

[@arinzeanthony7447]

Naa.
He's right.

[@Kitwanderer]

The condition clearly states that they must be seated alternately, starting the arrangement at girls-boys will left out 2 boys together at the end of the arrangement, thus making your reasoning wrong because of the condition stated at hand.

[@ShatadiDaphney-yw3sq]

Good

[@saipatil8390]

Bro in question a) there is also the position for girls at the end like :-
G B G B G B G B G
Even thought, girls are 3 but the position are 5 for alternation. Isn't it possible?
Just the query.

[@justinjefferson8698]

Sir pano if "Anyone can sit to anybody?"

[@jerrycojaurigue772]

What do you mean 'sit to anyone'?

[@gabriellebacasmas751]

How can you arrange 4 boys and 3 girls if girls are grouped together naman po?

[@gran7773]

Tama po ba 2! x 5! = 240 ang sagot sa D. og bobo lng ako at kailangan pang mag review?

[@jerrycojaurigue772]

Since 2 students refuse to sit together, bilangin mo muna yung magkatabi sila. 6!2! The subtract mo from 7!

[@hazeljanepalmero453]

San mopo nakuha yung 6 sa 24×6 po??

[@jerrycojaurigue772]

Is this in a? 4! x 3! 4! is 4x3x2x1 = 24 and 3! is 3x2x1=6

[@justinekurltrio4041]

Pano naman po pag a) 2 girls must be seated together b) 2 girls must NOT be seated together.
Thanks po!

[@jerrycojaurigue772]

Hello. Sorry late reply. Katulad lang sya ng letter C.

[@jammy656]

Find the number of ways in which 4 boys and 4 girls are sitting alternately if one boy and one girl are to sit in adjacent seats. (Ans. 504 ways)
Ano pong solution nito?

[@phoeleeqiye3857]

mali yung a

[@jerrycojaurigue772]

Hello. Why do you think A is wrong?

[@jamessantos7905]

Mali yung A kasi pwedering ring mauna yung girls kesa boy so multiply pa sya sa 2

[@jerrycojaurigue772]

hmmm...ano ang arrangement nila kung mauuna yung girls? Possible ba na alternating pa rin sila?