₦airaland ForumWelcome, Guest: Join Nairaland / Login / Trending / Recent / NewStats: 1,662,690 members, 3,113,071 topics. Date: Thursday, 29 September 2016 at 06:02 AM |
Nairaland Forum / Nairaland / General / Education / Maths Tricks, Questions And Brain Teasers (36033 Views)
Brain Teasers Can You Slove These? / 22 Very Important Google Search Tricks / Brain Teasers Required To Increase Your IQ (1) (2) (3) (4)
(0) (1) (2) ... (4) (5) (6) (7) (8) (9) (10) ... (18) (Reply) (Go Down)
Re: Maths Tricks, Questions And Brain Teasers by LaParisienne(f): 9:57am On Jan 26, 2012 |
sauer: Erm Monsieur, it's the other way round. You get an invite when I see rocket science |
Re: Maths Tricks, Questions And Brain Teasers by kariolality: 5:58pm On Jan 26, 2012 |
@Saver,you got my question right. |
Re: Maths Tricks, Questions And Brain Teasers by kariolality: 6:04pm On Jan 26, 2012 |
The minute hand of a circular clock is on '1' and another hand is on '5' , Find the angle between the two hands, |
Re: Maths Tricks, Questions And Brain Teasers by emofine2(f): 7:13pm On Jan 26, 2012 |
kariolality: 120° angle. |
Re: Maths Tricks, Questions And Brain Teasers by Nobody: 8:18pm On Jan 26, 2012 |
kariolality: emöfine: or 240° |
Re: Maths Tricks, Questions And Brain Teasers by Nobody: 8:18pm On Jan 26, 2012 |
La Parisienne:mademoiselle, what have you got to deserve rocket science!? |
Re: Maths Tricks, Questions And Brain Teasers by Nobody: 8:22pm On Jan 26, 2012 |
emöfine:Ndo! Pele! Sorry! schade! désolé! emöfine:culprit! |
Re: Maths Tricks, Questions And Brain Teasers by Nobody: 8:22pm On Jan 26, 2012 |
From earlier: You attended a chess tournament and saw varying chess boards between every two incredibly attentive players. So, you were thinking. . . hmmm, if i had a 7 × 7 checkered square board (i.e., a 7 × 7 chess board), how many rectangles would there be in total? Note: a square is also a special type of rectangle, so you want to count the square too! |
Re: Maths Tricks, Questions And Brain Teasers by emofine2(f): 9:42pm On Jan 26, 2012 |
sauer: 50. |
Re: Maths Tricks, Questions And Brain Teasers by Nobody: 1:39am On Jan 27, 2012 |
emöfine:wrong!!! |
Re: Maths Tricks, Questions And Brain Teasers by emofine2(f): 5:07am On Jan 27, 2012 |
sauer:Oh, right sauer:O, ye of little faith. |
Re: Maths Tricks, Questions And Brain Teasers by Nobody: 7:34pm On Jan 27, 2012 |
^^try harder next time, girl! |
Re: Maths Tricks, Questions And Brain Teasers by kariolality: 8:21pm On Jan 28, 2012 |
@emofine and saver, yeah its 120degree<smallest angle> or 240degree if we were to take it the other way round, |
Re: Maths Tricks, Questions And Brain Teasers by kariolality: 8:01am On Jan 29, 2012 |
You have got to fill a cylindrical drum with a bucket(frustrum of a cone) by fetching water from the tap with the bucket and pouring it into the drum(cylinder), The bucket is 20cm deep,with the top and buttom radius of 21cm and 7cm, approximate the number of time you will fetch from the tap to fill the cylindrical drum if the height of the drum 120cm and its radius is 42cm , if u get the answer,i got a small gift for you, |
Re: Maths Tricks, Questions And Brain Teasers by Flashaldrin(m): 9:40am On Jan 29, 2012 |
Mtcheeeew, sauer, i tire for you joor. You just dey undermine my answers, i don tire. |
Re: Maths Tricks, Questions And Brain Teasers by emofine2(f): 9:50am On Jan 29, 2012 |
sauer: When the answer hits me and the spirit moves me, boy! Flashaldrin: Answers wey u run come fetch from internet abi? confess |
Re: Maths Tricks, Questions And Brain Teasers by Flashaldrin(m): 10:18am On Jan 29, 2012 |
Ok take this for an example sauer:for the number of rectangles, in 7*7 chess board there are 8 vertical lines and 8 horizontal lines. To form a rectangle you must choose 2 of the 8 vertical lines, and 2 of the 8 horizontal lines. Each of these can be done in 8C2 ways = 28 ways. So the number of rectangles is given by 28^2 = 784. Oya watch him undermine this |
Re: Maths Tricks, Questions And Brain Teasers by Flashaldrin(m): 10:29am On Jan 29, 2012 |
emöfine:lol, spare me joor, most of those questions are elementary math duhh, and most of his questions are customized. I'm flattered if you consider my answers good enough to be culled from the internet. |
Re: Maths Tricks, Questions And Brain Teasers by emofine2(f): 10:39am On Jan 29, 2012 |
Flashaldrin: Haba. Guy na joke o. . . kai! see how you come display CV for me. But yes you should be flattered I saw fit to tease you Which state were you representing by the way? |
Re: Maths Tricks, Questions And Brain Teasers by Flashaldrin(m): 11:31am On Jan 29, 2012 |
kariolality:well, quite easy. But i go sure full workings before emocrazy go say i copy am All you've got to do is divide the volume of the drum (cylinder) from that of the bucket, truncated cone). Vol of cylinder = #r^2h = 22/7 *42*42*120 = 665280 vol of truncated cone (difference of 2 cones) = #h/3(R^2+r^2+Rr) R = radius of base = 21 r = radius of top = 7 = 22/7*20/3(21^2+7^2+21*7) = 13346.7 therefore 665280/13346.7 = 49.8. Therefore the number of times is approx 50 times. Oya the gift!! |
Re: Maths Tricks, Questions And Brain Teasers by Flashaldrin(m): 11:47am On Jan 29, 2012 |
emöfine:lol, ok naa |
Re: Maths Tricks, Questions And Brain Teasers by kariolality: 3:11pm On Jan 29, 2012 |
@flashaldrin,what's d meaning of 'emocrazy' |
Re: Maths Tricks, Questions And Brain Teasers by kariolality: 3:45pm On Jan 29, 2012 |
Flashaldrin:WELDONE flashaldrin you got the answer right, although i just form the question off-hand and when i worked it out now i saw that you got it right<BRILLIANT you>, I'm given you the gift b4 8pm tomorrow , post ur MTN number and i'll write it and i'll tell u have written it for privacy and security purpose and u will remove it when i get the gift then i'll send it to you via your number tomorrow, Post it as soon as u see dis post i'm online waiting, |
Re: Maths Tricks, Questions And Brain Teasers by mcnepow(m): 3:53pm On Jan 29, 2012 |
¤¤Subscribing¤¤ |
Re: Maths Tricks, Questions And Brain Teasers by emofine2(f): 3:55pm On Jan 29, 2012 |
Flashaldrin: Flash no vex abeg, you don't have to prove anything. I know you're smart kariolality: my other half |
Re: Maths Tricks, Questions And Brain Teasers by Flashaldrin(m): 5:36pm On Jan 29, 2012 |
^^^ alright! kariolality:yeeeeee, finally! Someone that appreciates answers. Kudos to you too for composing the question off hand, it looked standard. thanks man. Brb! |
Re: Maths Tricks, Questions And Brain Teasers by Flashaldrin(m): 5:40pm On Jan 29, 2012 |
mcnepow:you don hear money your eye don dey shine @kariolality, are you online now? |
Re: Maths Tricks, Questions And Brain Teasers by kariolality: 6:27pm On Jan 29, 2012 |
Re: Maths Tricks, Questions And Brain Teasers by kariolality: 6:29pm On Jan 29, 2012 |
@ flashaldrin POST THE NUMBER NOW, ]/ I used to form any mathematical question off-hand and sometimes with digit manipulations<u understand> . .,, hmmm, but it's a small gift ok what line are u using , POST now nd remove it by 8:30 today, |
Re: Maths Tricks, Questions And Brain Teasers by Flashaldrin(m): 6:59pm On Jan 29, 2012 |
;d ;d |
Re: Maths Tricks, Questions And Brain Teasers by emofine2(f): 7:37pm On Jan 29, 2012 |
Next mental arithmetic: Flashaldrin + kariolality - Freecocoa = ? |
Re: Maths Tricks, Questions And Brain Teasers by kariolality: 7:41pm On Jan 29, 2012 |
Ok u may remove it, expect it b4 8pm tomorrow, |
(0) (1) (2) ... (4) (5) (6) (7) (8) (9) (10) ... (18) (Reply)
Abducted Lagos SchoolGirls Back In School [PHOTO] / UNILAG Begins Sales Of Post Graduate Form For 2012/2013 Academic Session... / So Many People Will Get This Wrong: What Is The Opposite Of Red?
(Go Up)
Sections: politics (1) business autos (1) jobs (1) career education (1) romance computers phones travel sports fashion health religion celebs tv-movies music-radio literature webmasters programming techmarket Links: (0) (1) (2) (3) (4) (5) (6) (7) (8) (9) Nairaland - Copyright © 2005 - 2016 Oluwaseun Osewa. All rights reserved. See How To Advertise. 87 |