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Nairaland Math Quiz Winner l::::::JARYEH::::::l - Education (49) - Nairaland

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Re: Nairaland Math Quiz Winner l::::::JARYEH::::::l by Nobody: 2:49pm On Nov 19, 2013
akpos4uall:
Yeah me too but this is how I arrived at the solution:
n^2 - n - 99750156 = 0
n(n-1) = 99750156
The above equation is simply a product of two numbers with difference of one. Hence if you take the square root of both sides then round up and down, you'll will get the two numbers if the solution are whole numbers.
E.g 8 * 7 = 56
Sqrt of 56 is approximately equal to 7.48
Round this up and down to get 7 and 8 which is the answer
The same way sqrt of 99750156 = 9987.5
Round up and down to get 9987 & 9988
In this case, n is the bigger of the two, hence n = 9988
chai...see sense...me don learn anoda thing 4 here o...kudos bro...weldone.
Re: Nairaland Math Quiz Winner l::::::JARYEH::::::l by Nobody: 2:50pm On Nov 19, 2013
Amazing Angel: Wats d name of d topic to d question alpha maximum posted d other tym abt handshakes?
...i could say statistical word problem..
Re: Nairaland Math Quiz Winner l::::::JARYEH::::::l by Nobody: 2:50pm On Nov 19, 2013
akpos4uall:
Yeah me too but this is how I arrived at the solution:
n^2 - n - 99750156 = 0
n(n-1) = 99750156
The above equation is simply a product of two numbers with difference of one. Hence if you take the square root of both sides then round up and down, you'll will get the two numbers if the solution are whole numbers.
E.g 8 * 7 = 56
Sqrt of 56 is approximately equal to 7.48
Round this up and down to get 7 and 8 which is the answer
The same way sqrt of 99750156 = 9987.5
Round up and down to get 9987 & 9988
In this case, n is the bigger of the two, hence n = 9988

Yeah. I know that trick. I tried different combinations. I even got so close that I did 9988 * 9989! But you know how it is when you're on a hot seat.
Re: Nairaland Math Quiz Winner l::::::JARYEH::::::l by jaryeh(m): 2:50pm On Nov 19, 2013
Amazing Angel: Wats d name of d topic to d question alpha maximum posted d other tym abt handshakes?

Permutation and Combination.
Re: Nairaland Math Quiz Winner l::::::JARYEH::::::l by echibuzor: 2:53pm On Nov 19, 2013
Amazing Angel: Wats d name of d topic to d question alpha maximum posted d other tym abt handshakes?
Permutation and Combination
Re: Nairaland Math Quiz Winner l::::::JARYEH::::::l by Nobody: 2:53pm On Nov 19, 2013
jaryeh:

Permutation and Combination.
o ya o...let's go there! oga mi to sure. oga mi sir. quadruple respect...i hail o.....
@alphamaximus, load dese qstn fast o...d suspence is too much o.
Re: Nairaland Math Quiz Winner l::::::JARYEH::::::l by AlphaMaximus(m): 2:55pm On Nov 19, 2013
Question By Quizmaster Alpha Maximus
Question: There has recently been an invention of a very effective heavy-duty machine-gun to aid in the fight against terrorism. Its cylindrical barrel has a diameter of 70cm and a length of 49cm. Its spherical bullets are have a diameter of 0.02m. How many bullets can the machine gun hold(correct to the nearest thousand)? (Pi=22/7)
Re: Nairaland Math Quiz Winner l::::::JARYEH::::::l by AmazingAngel(f): 2:55pm On Nov 19, 2013
echibuzor:
Permutation and Combination
jaryeh:

Permutation and Combination.
benbuks: ...i could say statistical word problem..
†̥ånKz guys
Re: Nairaland Math Quiz Winner l::::::JARYEH::::::l by jaryeh(m): 2:56pm On Nov 19, 2013
aysuccess99:
o ya o...let's go there! oga mi to sure. oga mi sir. quadruple respect...i hail o.....
@alphamaximus, load dese qstn fast o...d suspence is too much o.

You and whynin sha. cheesy cheesy cheesy cheesy
Re: Nairaland Math Quiz Winner l::::::JARYEH::::::l by AlphaMaximus(m): 2:57pm On Nov 19, 2013
My question has been posted.
Re: Nairaland Math Quiz Winner l::::::JARYEH::::::l by Richiez(m): 3:02pm On Nov 19, 2013
Alpha Maximus: Question By Quizmaster Alpha Maximus
Question: There has recently been an invention of a very effective
heavy-duty machine-gun to aid in the fight against terrorism. Its
cylindrical barrel has a diameter of 70cm and a length of 49cm. Its
spherical bullets are have a diameter of 0.02m. How many bullets can the
machine gun hold(correct to the nearest thousand)? (Pi=22/7)

5 mins more!!!
Re: Nairaland Math Quiz Winner l::::::JARYEH::::::l by Nobody: 3:09pm On Nov 19, 2013
@Maximus

I like this one. smiley
Re: Nairaland Math Quiz Winner l::::::JARYEH::::::l by Nobody: 3:13pm On Nov 19, 2013
smurfy: @Maximus

I like this one. smiley
have u solve it...bluetooth me d ans o my grt efiwe...me i hail u o cos u be guru...me i knw no mensuration o bt i knw dat my ogas in d house wld teach me.
Re: Nairaland Math Quiz Winner l::::::JARYEH::::::l by Nobody: 3:15pm On Nov 19, 2013
aysuccess99:
have u solve it...bluetooth me d ans o my grt efiwe...me i hail u o cos u be guru...me i knw no mensuration o bt i knw dat my ogas in d house wld teach me.

Will you ever stop? smiley
Re: Nairaland Math Quiz Winner l::::::JARYEH::::::l by AmazingAngel(f): 3:18pm On Nov 19, 2013
Gosh,didn't read d question very well,I hope I get it sha,tired sef
Re: Nairaland Math Quiz Winner l::::::JARYEH::::::l by Nobody: 3:18pm On Nov 19, 2013
smurfy:

Will you ever stop? smiley
stop what my oga....? am nt lying o...am jst telln my ogas dat dey wld teach me...#lobatan#...nd d BIBLE SAYS:ASK AND U SHALL BE GIVEN.lolz#teamaskandushallbegiven#
Re: Nairaland Math Quiz Winner l::::::JARYEH::::::l by AmazingAngel(f): 3:20pm On Nov 19, 2013
Didn't even see to d nearest thousand,tension ŊO̶̷̩̥̊͡º° gud sha
Re: Nairaland Math Quiz Winner l::::::JARYEH::::::l by Nobody: 3:20pm On Nov 19, 2013
Amazing Angel: Gosh,didn't read d question very well,I hope I get it sha,tired sef
sowie sis. d LORD is ur strength o...don't be tired, u are a maths warrior and warriors are not tired...
courtesy:www.gulderultimatesearch.com
Re: Nairaland Math Quiz Winner l::::::JARYEH::::::l by Nobody: 3:22pm On Nov 19, 2013
Amazing Angel: Didn't even see to d nearest thousand,tension ŊO̶̷̩̥̊͡º° gud sha

I didn't see it too. Perhaps it was added later. I pray our compassionate masters won't penalize us for this. I already lost a point yesterday.
Re: Nairaland Math Quiz Winner l::::::JARYEH::::::l by Richiez(m): 3:23pm On Nov 19, 2013
Quiz master Alphamaximus will now post the solution
anyother person can post the solution while Quiz master Alphamaximus endorses the correct ones.

hold on for the score card

it's the the turn of participant no 10 to make a choice :::smurfy:::
Re: Nairaland Math Quiz Winner l::::::JARYEH::::::l by Nobody: 3:24pm On Nov 19, 2013
i have knw dat i wld miss dis qstn cos i didn't knw it........anyway sha GOD dey.....my gurus i hail u nah....u guys jst dey solve as if u nah no go solve again...i respect u o...
where's that great mathematician called factorial1? where is he?
Re: Nairaland Math Quiz Winner l::::::JARYEH::::::l by Nobody: 3:25pm On Nov 19, 2013
Factorial1 wer @ thou?...ba3 tinz i guess..
Re: Nairaland Math Quiz Winner l::::::JARYEH::::::l by Nobody: 3:26pm On Nov 19, 2013
The answer is 5627 ~ 5600 bullets.

No. 2
Re: Nairaland Math Quiz Winner l::::::JARYEH::::::l by denniece1(m): 3:26pm On Nov 19, 2013
Amazing Angel: Didn't even see to d nearest thousand,tension ŊO̶̷̩̥̊͡º° gud sha

Ooopss...I just noticed it now
Re: Nairaland Math Quiz Winner l::::::JARYEH::::::l by Nobody: 3:28pm On Nov 19, 2013
Richiez: Quiz master Alphamaximus will now post the solution
anyother person can post the solution while Quiz master Alphamaximus endorses the correct ones.

hold on for the score card

it's the the turn of participant no 10 to make a choice :::smurfy:::
the last question for today.........@smurfy,nah beg i dey beg u pls,biko,ogini,joh, choose a gud number o......permut am wella and choose a gud number......
Less Than A Hour, Today's Round Would Come To An End.....Who Do You Think Would Make It To The Finals...Let's Wait And See......
I Am Your Anchor: Chidi Mokeme.
Re: Nairaland Math Quiz Winner l::::::JARYEH::::::l by AmazingAngel(f): 3:29pm On Nov 19, 2013
I ŊO̶̷̩̥̊͡º° get am
Re: Nairaland Math Quiz Winner l::::::JARYEH::::::l by Richiez(m): 3:29pm On Nov 19, 2013
Richiez: Updated Score Card For Round4

1. :::JARYEH::: 26pts

2. :::DENNIECE1::: 27pts

3. :::IDENYIJOSHUA:::20pts

4. :::DR.GBOY::: 27pts

5. :::FACTORIAL1::: 22pts

6. :::AYSUCCESS99::: 23pts

7. :::KENDZYMA::: 21pts

8. :::LOGODWHIZ::: 10pts

9. [url=https://www.nairaland.com/amazing%20angel]:::AMAZING ANGEL:::[/url] 16pts

10. :::SMURFY::: 23pts
Re: Nairaland Math Quiz Winner l::::::JARYEH::::::l by AlphaMaximus(m): 3:31pm On Nov 19, 2013
Simple mensuration problem; we first obtain the volume of the barrel which is a cylinder thus we use 22/7*r^2*h, where r=70/2=35cm and h=49 and inputting these values into the formula we obtain a volume of 188,650cm^3......now we obtain the volume a single bullet which is a sphere(volume of sphere=4/3*pi*r^3) where r=(0.02*100)/2=1 and pi=22/7 and we obtain a volume of 4.1904761cm^3.....we now divide the volume of the barrel by the volume of a bullet to obtain the bullet- capacity of the barrel: 188,650/4.1904761=appr. 45,000bullets(nearest thousand)...no-one was penalised for not rounding off to the nearest thousand, as far one's answers were in the appropriate range

1 Like

Re: Nairaland Math Quiz Winner l::::::JARYEH::::::l by busuyem: 3:32pm On Nov 19, 2013
15000 bullets
Re: Nairaland Math Quiz Winner l::::::JARYEH::::::l by echibuzor: 3:32pm On Nov 19, 2013
smurfy: The answer is 5627 ~ 5600 bullets.

No. 2
Nearest thousand is 6000.
Re: Nairaland Math Quiz Winner l::::::JARYEH::::::l by Richiez(m): 3:32pm On Nov 19, 2013
factorial1 sent me a mail saying his ba3 was very low...
he will be awarded a bonus 2pts at the end of this round only if other participants endorses it

so participants what do u av to say?
Re: Nairaland Math Quiz Winner l::::::JARYEH::::::l by AlphaMaximus(m): 3:32pm On Nov 19, 2013
smurfy: The answer is 5627 ~ 5600 bullets.

No. 2
...WRONG....view my solution

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