Interesting Logical Puzzle
This one's an interesting puzzle and DOES NOT involve any MECHANICS!
There's a Bridge 2.4 km long with a load handling capacity of exactly 1 tonne and is bound to collapse if load increases by even a single gram than a tonne.
A bus, loaded fully with passengers, of weight exactly a tonne is crossing over the bridge. At exactly 3/4th of the length of the bridge a Crow comes (out of the Blue) and sits on top of the Bus.
But to everyone's surprise, the Bridge doesn't collapse and the bus crosses it safely.
Why?
Leave your answers below -
Is two equals one?
Is 2 = 1?
Today, I will prove that two is equal to one (2 = 1). I will do that in more than one way. You know what you have to do? You have to point out the fallacy in the proofs.
The Fallacious Proof - 1:
Let, a = x
a+a = a+x [add a to both sides]
2a = a+x [a+a = 2a]
2a-2x = a+x-2x [subtract 2x from both sides]
2(a-x) = a+x-2x [2a-2x = 2(a-x)]
2(a-x) = a-x [x-2x = -x]
Quick method to evaluate polynomials – Horner’s method
This is a guest post by Nandeesh H.N. of Kolkata
How to find the value of a Polynomial Function?
Horner's method is commonly used to find the roots of a polynomial function. However it can also be used to evaluate the polynomial function for a given value of x.
Suppose, we want to evaluate the polynomial
p(x) = 4x^5 - 3x^4 + 7x^3 + 6x^2 + 3x + 9 at x = 2.41.
The usual method of evaluation is to evaluate each product (such as 4*2.41^5 or 7*2.41^3) separately and then add. The drawback is that to evaluate any power of x, we go through all of the previous powers.
A slightly better method is to make a table of powers of 2.41 and put them in the given polynomial.
Take the Link Challenge – Win a Book
Take the Link Challenge
Today I thought it might be fun to do a bit of a fun challenge.
The challenge is very simple – You have to find the websites, blogs, web pages, etc. linking to QuickerMaths.com (QM) or any of its post.
As your answers you have to just paste the URL (link) of the website or blog where you have seen QM link.
Rules:
- The link might be a blogroll link like the one in the image below on fireup blog
2. Link within the text referring to QM. That could be because someone copied any post from QM and pasted it elsewhere.
The figure below shows an example of this on forum of www.caclubindia.com
- The link can be on a social networking site like facebook, orkut, etc. posted by you or someone else.
- The link could be a simple mention of the link - http://www.quickermaths.com or www.quickermaths.com or quickermaths.com
(But it should be a link and not simple text)
*You can even give the link of websites or blogs where you yourself have give QM’s link. When you posted the link doesn’t matter.
**Links present on QuickerMaths.com website will not be considered.
I assure you it will be a fun filled experience and your “googling” skills will improve a lot.
The winner will get the most amazing book on Vedic Mathematics by the father of Vedic Maths - Bharati Krsna Tirthaji Maharaja
Vedic Maths book
To know more about the book – visit http://vedicmathsindia.org/view_detail1.htm
While giving your responses as comment below –
- Mention your full name in name space
- Mention your email address in email space
- Mention http://www.quickermaths.com in the website space
I will collect the address after announcing the winner to send the prize.
Interesting Puzzle
Time to solve a very interesting and logical puzzle
I have picked up this puzzle from IBM monthly challenge. I will give the exact link of the site later (for those who are interested)
Background: It's Thanksgiving, and time to stuff the turkey. But we've got a problem. The stuffing came in a cube measuring 12cm on a side. The hole in the turkey, however, will accommodate a rectangular block measuring 8cm by 8cm by 27cm. Due to time constraints (we can't miss the parade on TV) we only want to cut the stuffing into four pieces.
The question:
How can we cut the 12cm cube into four pieces which will reassemble into an 8cm by 8cm by 27cm block?
Friends, leave your answer below -
If you have any puzzle, riddle, brainteaser, etc. you think we might enjoy, please send them in. All mails should be sent to: vineetpatawari@gmail.com
Competitive Examination Question
Quantitative Aptitude Question for Competitive Examinations
Try solving this questions which has appeared in CAT, GRE and GMAT papers and many other competitive examinations. So try your hands at this question from topic speed and distance. You can expect similar questions in competitive examinations.
Here is the Competitive Examination Question -
A thief escaped from police custody. Since he was a sprinter, he could run at a speed of 40 km/hr. The police realized it after 3 hr and started chasing him in the same direction at 50km/hr. The police had a dog, which could run at 60 km/hr. The dog would run to the thief and then return back to the police and then would turn back towards the thief. It kept on doing so till the police caught the thief. Find the total distance traveled by the dog in the direction of the thief?
Here are the options -
a) 720 km
b) 600 km
c) 660 km
d) 360 km
e) 230 km
I will provide the solution later. I urge everyone to try this. Please give explanation with your answers -
Free SMS Preparation – Word Meanings, Maths Tricks
This post is to introduce you all to a very useful and 100% free service provided by FireUp (sister concern of QuickerMaths.com) - the all new FireUp SMS Channel.
Now you can get word meanings, various information, tips and tricks related to your competitive examination preparation directly on your mobile through SMS.
We will send you -
1) English words with their meanings daily. How is it beneficial?
- 5 Words daily means : 5x30= 150 words per month and 150x12=1800 words an year. (approx.)
- You can revise them in your free time
2) Quick calculation tricks which will surely make you a master at tackling data interpretation questions.
3) Information about important events and dates related to CAT and other examinations
Who is behind QuickerMaths?
I am Vineet Patawari - PGDM (IIM Indore), ACA, B.Com(H). My passion for Mathematics, specially Vedic Maths encouraged me to start QuickerMaths
I believe that if trained properly using powerful tools like Vedic Maths, the immense intellect of human mind can be ignited instantly - find out more
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Recent Comments
watchman was paid for awaking not for sleeping so that he can see dreams.. – 05Feb12
as a night watchman he shouldnt have slept at night to get that dream... – 04Feb12
Can u plz give me clarity in ur solution Kaush sir..... – 04Feb12
thanks for these tricks. Are these from the book "quicker maths by m.tyra" ? – 03Feb12
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