Quicker Maths » number puzzle

Something for the Chickens

admin — Sat, 23 Oct 2010 00:23:50 +0000

A simple mathematical logic says -

odd + odd = even

odd + even = odd

even + odd = odd

even + even = even

Now since you know this have a look at the small riddle below -

A friend of mine runs a small poultry farm in Bangalore. She took me round to see the place. I counted the number of chickens. There were 27 of them. And there were 4 enclosures. I noticed that in each enclosure there were an odd number of chickens.

Can you tell how many there were in each enclosure?

Age Puzzle Game

admin — Sat, 26 Dec 2009 09:28:32 +0000

Age Puzzle

If you are 12 years or over:

Write down your age.

Reverse the figures.

So, if your age is 13, reversing the figures gives 31.

Take away your age from the second number.

Divide by nine.

You may not believe it but we know there won’t be remainder. Try it with anyone’s age.

Consecutive Natural Numbers

admin — Tue, 15 Dec 2009 08:59:59 +0000

There are two consecutive natural numbers whose product is equal to the product of three consecutive natural numbers for example (x + 1) = (y + 1) (y + 2). What are the two numbers?

Number of Poles in a Fence

admin — Mon, 14 Dec 2009 05:15:44 +0000

A farmer built a fence around his 17 cows, in a square shaped region. He used 27 fence poles on each side of the square.

How many poles did he need altogether?

Counting A Billion

admin — Thu, 10 Dec 2009 08:59:39 +0000

If you were to count one number per second and counted seven hours per day, how long would it take you to count to a Billion?

Abra Cadabra

admin — Wed, 09 Dec 2009 05:25:00 +0000

SEVEN VIGINTILLION, THREE HUNDRED FORTY SIX NOVEMDECILLION, SIX HUNDRED FORTY EIGHT OCTODECILLION, FOUR SEPTEDECILLION, FIVE HUNDRED SIXTY SEXDECILLION, NINE HUNDRED EIGHTYSIX QUINDECILLION, TWO HUNDRED FIFTEEN QUATTOUR DECILLION, THREE HUNDRED FORTY EIGHT DUODECILLION, FOUR HUNDRED FORTY FOUR UNDECILLION. TWO HUNDRED EIGHTYSIX DECILLION, FOUR HUNDRED FORTY FIVE NONILLION, THREE HUNDRED AND FIVE OCTILLION, ONE HUNDRED FORTY SIX SEPTILLION, THIRTY NINE SEXTILLION, ONE HUNDRED FORTY QUINTILLION, FORTY SIX QUADRILLION, NINE HUNDRED SIXTY TRILLION, SIX HUNDRED SEVENTY EIGHT BILLION, FIVE HUNDRED EIGHTYTWO MILLION, TWO HUNDRED FIFTY SIX THOUSAND AND THREE. Can you write this as a numeral?

Solving Problems

admin — Sat, 05 Dec 2009 08:57:43 +0000

Romila appeared for a maths exam. She was given 100 problems to solve. She tried to solve all of them correctly but some of them went wrong. Any how she scored 85.

Her score was calculated by subtracting two times the number of wrong answers from the number of correct answers.

Can you tell how many problems she solved correctly?

Name of the Exchange

admin — Fri, 27 Nov 2009 12:40:53 +0000

In Great Britain some years back the first three letters of a telephone number used to indicate the name of the exchange. How many such arrangements of 3 letters is it possible to devise from the 26 letters of the alphabet?