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Mathematics Challenge: 50% Will Fail This! - Education (6) - Nairaland

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Re: Mathematics Challenge: 50% Will Fail This! by lanchy: 11:14am On Jan 26, 2022
Factorial sign means !,so anything like n! = n x (n-1).....

Thus or so therefore

3! = 3 x (3-1)! = 6

So Y - 3 = 6

Hence, the smug ones are saying 9 is the answer, which is correct!
Re: Mathematics Challenge: 50% Will Fail This! by maxzzo1(m): 11:15am On Jan 26, 2022
12
But is not fair more than 70% on d platform don't know what factorial is all about.....including Lalac....... tongue
Re: Mathematics Challenge: 50% Will Fail This! by Sexydevil(m): 11:16am On Jan 26, 2022
12
Re: Mathematics Challenge: 50% Will Fail This! by Kisslatex: 11:22am On Jan 26, 2022
Factorize 81a-16b
Re: Mathematics Challenge: 50% Will Fail This! by Olamideayomide(m): 11:25am On Jan 26, 2022
12
Re: Mathematics Challenge: 50% Will Fail This! by Osanoghodua1: 11:26am On Jan 26, 2022
12. Ans

3 factorial
Re: Mathematics Challenge: 50% Will Fail This! by etimism1981: 11:31am On Jan 26, 2022
Good boy. The Answer is 12.
Explanation

Any number follow by ( ! ) You have to apply the factorial system which is n=(n-1(n-2)(n-3)
Which 3 is substitute to all the "n" value.
This same applicable if other number is used such as 4, 5, 9, you just expand the formula to 4, 5, etc, and multiple.

Thanks for the question. This is what we need in Nigeria. Instead talking insensible things.
Re: Mathematics Challenge: 50% Will Fail This! by badboyTee(m): 11:31am On Jan 26, 2022
psucc:
Na 9 be the answer

Y-6 =3
Y = 3+6
Y = 9
olodo
Re: Mathematics Challenge: 50% Will Fail This! by 9ty4our: 11:31am On Jan 26, 2022
12
Re: Mathematics Challenge: 50% Will Fail This! by lomprico(m): 11:42am On Jan 26, 2022
Obinoscopy:
Just state your answer. Don't show the working please.

Mathematically, Y = 12
Grammatically, Y = 9
Re: Mathematics Challenge: 50% Will Fail This! by jamace(m): 11:43am On Jan 26, 2022
12

Those who got 12 and went ahead to show the working have failed technically due to failure to comply with instruction. Learn to follow instruction!

1 Like

Re: Mathematics Challenge: 50% Will Fail This! by federal9: 11:44am On Jan 26, 2022
Sonnobax15:
cheesy
Those of una wey dey type many many things,e dey very clear say una no go school at all.....

9 cool


Let me lecture you a little. In mathematics, an exclamation mark after a number signifies factorial.

When you see 2! It means 2x1
3! Means 3x2x1
4! Means 4x3x2x1
18! Means 18x17x16x15x14x........ Down to x1

I hope you have learned something today.
Re: Mathematics Challenge: 50% Will Fail This! by Nobody: 11:45am On Jan 26, 2022
IamGreen1:



Not only him and the people that 'like' his comment cheesy
I swear

1 Like

Re: Mathematics Challenge: 50% Will Fail This! by Timothyoj(m): 11:50am On Jan 26, 2022
okikijamal:
12

Modified

Y-6=3!
Y-6=3×2×1
3! (3 factorial = 3x2x1)
Y-6=6
Take like terms
Y=6+6
Y=12 (Answer)

Shikena!

Do you know you failed this question, simply because you did not yield to simple instruction " Do not show any working".
If everyone gets the answer, something will be used for screening ......!
Re: Mathematics Challenge: 50% Will Fail This! by Josephkabila12: 12:01pm On Jan 26, 2022
12
Re: Mathematics Challenge: 50% Will Fail This! by Timothyoj(m): 12:02pm On Jan 26, 2022
Timothyoj:


Do you know you failed this question, simply because you did not yield to simple instruction " Do not show any working".
If everyone gets the answer, something will be used for screening ......!

Ans= C (12)
Re: Mathematics Challenge: 50% Will Fail This! by Ethannathan(m): 12:07pm On Jan 26, 2022
9
Re: Mathematics Challenge: 50% Will Fail This! by Privatepart00: 12:10pm On Jan 26, 2022
jericco1:
I wonder how you people got 12.

Una go just dey one place dey create countless problems for person

Y-6=3!
! is called factorial in Further Mathematics.
6! means 6*5*4*3*2*1=720.
5! means 5*4*3*2*1=120.
4! means 4*3*2*1=24.
So also 3! is 3*2*1=6.
2! means 2*1=2.
1! means 1*1=1.
Coming back to the problem above:
Y-6=3*2*1
Y-6=6
Making Y subject of formula gives
Y=6+6 ( the minus 6 crosses the equality sign it changes to plus 6)
Adding gives Y = 12.
Hope this helps , but if you did Further Maths in Secondary school it will be clearer.

1 Like

Re: Mathematics Challenge: 50% Will Fail This! by Nobody: 12:16pm On Jan 26, 2022
Obinoscopy:
Just state your answer. Don't show the working please.



What is the essence of this?
Re: Mathematics Challenge: 50% Will Fail This! by DrFunmisticGlow: 12:23pm On Jan 26, 2022
Obinoscopy:
Just state your answer. Don't show the working please.
it's C

That exclamation mark means 3x2x1=6
I have forgotten what they call it

Haven't done mathematics is 12 years. Sue me.

Sirjamesjnr dear, food is ready

1 Like

Re: Mathematics Challenge: 50% Will Fail This! by Godshope: 12:24pm On Jan 26, 2022
Y - 6 = 3!
Y - 6 = 3 x 2 x 1
Y - 6 = 6
Y = 6+6
Y = 12

1 Like

Re: Mathematics Challenge: 50% Will Fail This! by Noah94(m): 12:25pm On Jan 26, 2022
The answer is 12....
Re: Mathematics Challenge: 50% Will Fail This! by aumoria(m): 12:31pm On Jan 26, 2022
What is the question? There is no instruction indicating what should be done.
Re: Mathematics Challenge: 50% Will Fail This! by Bejones(m): 12:35pm On Jan 26, 2022
Y-6=3!
Y=3 *2+6=12
Re: Mathematics Challenge: 50% Will Fail This! by Semaj77(m): 12:35pm On Jan 26, 2022
Obinoscopy:
Just state your answer. Don't show the working please.


C
Re: Mathematics Challenge: 50% Will Fail This! by Semaj77(m): 12:38pm On Jan 26, 2022
cigaricon:
Simple, 9

Something as simple as this and people are doing long calculations like it's Jamb question, even after Op said just state the answer. Una wan show say una go school pass, yet with all the calculations you still failed. Chai! It is well sad


You're the one who failed it
Re: Mathematics Challenge: 50% Will Fail This! by aktolly54(m): 12:54pm On Jan 26, 2022
derbykol:
Yes,under permutation and combination.
oh...no wonder am hearing it for the first time. I used to know maths back then whereas I was art students not science. Thanks for letting me know

1 Like

Re: Mathematics Challenge: 50% Will Fail This! by mamawa123: 1:01pm On Jan 26, 2022
psucc:
Na 9 be the answer

Y-6 =3
Y = 3+6
Y = 9

Y - 6 = 3 and Y - 6 = 3!
The equations above are different
3! = 3 x 2 x 1 = 6

Therefore
Y - 6 = 3!
Y - 6 = 3 x 2 x 1
Y - 6 = 6
Y = 6 + 6
Y = 12
Re: Mathematics Challenge: 50% Will Fail This! by Nobody: 1:08pm On Jan 26, 2022
12
Re: Mathematics Challenge: 50% Will Fail This! by Alusiizizi(m): 1:14pm On Jan 26, 2022
nairaman66:


Can you please share your answer. Cheers

Already did. Go through the posts.
Re: Mathematics Challenge: 50% Will Fail This! by difference5050: 1:24pm On Jan 26, 2022
Y-6=3!
Making Y the subject of formula
Y=3!+6 note when minus;(-)) crosse's the sign of equality it will change to plus!(+)
So 3×2×1+6
=6+6= 12 the answer is 12
Re: Mathematics Challenge: 50% Will Fail This! by sirjamesjnr(m): 1:31pm On Jan 26, 2022
DrFunmisticGlow:
it's C

That exclamation mark means 3x2x1=6
I have forgotten what they call it

Haven't done mathematics in 12 years. Sue me.

Sirjamesjnr dear, food is ready
. You rock it. The answer is 12.

1 Like

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