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Nairaland Forum / Nairaland / General / Education / Mathematics Challenge: 50% Will Fail This! (24062 Views)
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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....... |
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: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: 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: 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:I swear 1 Like |
Re: Mathematics Challenge: 50% Will Fail This! by Timothyoj(m): 11:50am On Jan 26, 2022 |
okikijamal: 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: 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: 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 |
Re: Mathematics Challenge: 50% Will Fail This! by DrFunmisticGlow: 12:23pm On Jan 26, 2022 |
Obinoscopy: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 |
Re: Mathematics Challenge: 50% Will Fail This! by Semaj77(m): 12:38pm On Jan 26, 2022 |
cigaricon: You're the one who failed it |
Re: Mathematics Challenge: 50% Will Fail This! by aktolly54(m): 12:54pm On Jan 26, 2022 |
derbykol: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: 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: 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:. You rock it. The answer is 12. 1 Like |
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