Norway - Math Olympiad Question | A Nice Factorial Problem

[@Psykolord1989]

Before watching: Alright, easiest way to figure this out is to determine for which number n does n!=120. 1! Is 1, 2! Is 2, 3!=6, 4!=24, 5!=120. Alright, since 5!=120, and (2x+4)! = 120, 2x+4 = 5 Subtract 4 on both sides: 2x=1 Divide both sides by 2: X=0.5

[@bremanchau464]

Cool

[@ANTI_UTTP_FOR_REAL]

This was way easy

[@BinethMinthusa]

Thank you 🙏

[@jacobcombs1106]

I saw number factorial equals 120 and immediately knew it was 5 which meant x was .5

[@Fernandez218]

same here. finally one of these olympiad questions i can solve from the thumbnail lol

[@jacobcombs1106]

@@Fernandez218 with all the 5! Memes Out there people shouldn't be struggling with this one lol.

[@Fernandez218]

@@jacobcombs1106 it's incredible what people struggle with when it comes to math. but everyone has their weakness i suppose. i can only draw stick figures, for example 😂😂

[@alster724]

(2x+4)!= 120 (2x+4)!= 5! 2x+4= 5 2x= 1 x= ½

[@desahanalam]

1)...on gasing island,dates are written in the form day/month,for example sept 30th woould be written 30/9.....on pusing island,dates are written form month/day for example december 13th would be written 12/13...when the pupils og those island visit each other,some of them do not aware these system and become confuse..for example :: 2/3 might mean february 3rd or it might mean March 2nd..for how many different dates these will happen???.......next question .number 2)Let X,Y,Z and T be intregers with X

[@herbertklumpp2969]

To easy for any test.120 = 5! Therefore 2x +4 =5 x= 0,5

[@rvp976]

how is this an olympaid question

[@shivamchaubey7722]

X=1/2

[@RandomnessVortex]

That was nice and easy

[@priyamkutum-zg3il]

(2×+4)!= 120= ans= 60

[@rizalsantos3658]

X=1

[@joramarentved]

Dit 'x' er 48.

[@gerardomr8231]

My God, this is a very stupid problem.

[@rudolfsverdins5552]

Too trivial.

[@sumedhu123]

Easy:1/2

[@kaushikbasu9707]

1/ 2

[@flipbook3944]

X is 58

[@anon2545]

Check out what ! sign means

[@reinoudwiers1267]

x = 1/2