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Number Puzzle #59

September 6, 2013 by Ankur 1 Comment

Find the answer in the image below

number puzzle 59

number puzzle 59


Check your answer:-

Tried enough already?
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Answer is 14.
How?
Actually its nothing but number of squares in the image, in the first image there are 5 squares and in the second there are 14 squares. thus the answer will be 14.

Checkout more Number Puzzles Tags: Difficult, Solved Puzzles

How many children, ladies and gents are there?

August 30, 2013 by puzzler 2 Comments

One family of 20 members have 20 chapatis to eat, finally

  1. Every child gets 1/2 chapati
  2. Every Lady in the house gets 2 chapatis
  3. And every gentleman gets 3 chapatis to eat.

How many Child, Ladies and Gents are there in the family?

See AnswersHide Answers

There are two possible answers:
Answer1: Number of children = 14, Ladies= 5 and Gents = 1
Answer2: Number od children = 16, Ladies = 0 and Gents = 4.
How?
We can form the mathematical equations and solve them, lets assume number of children = x, ladies = y and gents = z.

Then we can form these two equations

  1. x + y + z = 20(Total number of people in family)
  2. x/2 + 2y + 3z = 20 (Total number of chapati’s)

Now we can solve above two equations as below

x/2 + 2(y+z) + z = 20
x/2 + 2(20 -x) + z = 20 (replaced y+z from first equation)
40 + z -3x/2 = 20
3x/2 = 20 +z
as z > 0 => 3x/2 > 20, x = 14, 16, 18...

We can see that y becomes negative for any value of x greater than or equal to 18,thus x = 14 and 16 are two possible values. we can get the corresponding values of y and z as well.

Checkout more Number Puzzles Tags: medium, Solved Puzzles

Number Puzzle #58

August 23, 2013 by puzzler 4 Comments

IF 1= 5; 2 = 10; 3= 30, Then 4 = ?

IF 1 = 5 2 = 10 3 = 30 Then 4 = ??

IF 1 = 5
2 = 10
3 = 30
Then 4 = ??


Check your answer:-

Tried enough already?
See ExplanationHide Explanation
Answer is 120.
How?
If we observe
10 = 2×5
30 = 3×10
So every next result = multiplication of first number and previous result. thus the answer to above number puzzle should be 4×30 = 120.

Checkout more Number Puzzles Tags: medium, Solved Puzzles

Where is the missing $1 ?

August 11, 2013 by puzzler 2 Comments

Three friends went to a hotel. The bill was Rs $75, Each one of them contributed $25. The waiter took the bill to the cashier. For some reason cashier was happy & decided to give them a discount of $5 and asked the waiter to return them $5.

Now the waiter was confused. How to distribute $5 among 3 persons?

He kept $2 in his pocket and gave $1 to each one of the 3 persons. So initially each one had contributed $25. Now as they are Given $1 back, their contribution reduces to $24. They all contributed $24. i.e. 24×3=72 and 2 dollors are in the waiter’s pocket.The total becomes $74. But they had paid $75.
Where is the remaining $1?


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Actually this question is framed to confuse you.
Total given by customers = 3*24 = 72 = 70(with cashier) + 2 (with waiter).
in other words $75 earlier given by customer are distributed as
70(with cashier) + 2(with waiter) + 3(one dollar with each customer).

Checkout more Number Puzzles Tags: Easy, Solved Puzzles

Make 100 by using five numbers

August 7, 2013 by puzzler 9 Comments

These numbers make 200 by summing them all:

2 + 6+ 10+ 14 + 18 + 22 + 26+ 30+ 34 + 38 = 200

Can you take any 5 numbers out of these which adds up to 100?


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Actually it looks like there should be some way of making 100 by using 5 numbers, but there isn’t. Or may be we are missing something, so if you know any such combination, please share with all of us.

Checkout more Number Puzzles Tags: Difficult, Solved Puzzles

Number Puzzle #57

July 29, 2013 by puzzler 2 Comments

 

IF 3+5+6=151872 5+5+6=253094 5+6+7=303585 5+5+3=251573 then 9+4+7= ??????

IF 3+5+6=151872
5+5+6=253094
5+6+7=303585
5+5+3=251573
then
9+4+7= ??????


Check your answer:-

Tried enough already?
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In this kind of questions we have to find some pattern to get to the answer, we can see that getting first two digit and second two digits are easy, most difficult part in this question is to get last two digits.

First two digit = <first_number> * <second_number>

Similarly Second two digits = <first_number> * <third_number>

Now the most tricky part is to get last two digits, if you observe claverly

Last two digits = <first_two_digits> + <second_two_digits> – <third_number> and reverse them.

Thus the answer to this number puzzle is 366329.

Checkout more Number Puzzles Tags: Difficult, Solved Puzzles

Extra one dollar riddle

July 26, 2013 by puzzler 5 Comments

I have $50 with me, here is the summary of my spent and balance amount

Spend               Balance
20/-                     30/-
15/-                     15/-
9/-                        6/-
6/-                        0/-
==================
50/-                     51/-

Now, How can the total amount be 50 for one column and 51 for another.

From where this extra one dollar came ?

See AnswerHide Answer

Actually there is no comparison of sum of spent amount and sum of remaining amount. To make it easy to explain, lets say we spend $1 each time thus total spend becomes $50 while if we sum the balance amount i.e. 49 + 48 + 47 …….+1, it will be a very large number than $50.

Checkout more Number Puzzles Tags: Number Tricks, Solved Puzzles

Dinner time, nice number trick

July 22, 2013 by puzzler Leave a Comment

A nice number trick to play with your friends

Ask them, Using the below operations we will get to know what you generally likes to eat

  1. Take any number between 1 to 9
  2. Now multiply that number by 3
  3. Now add 3 to it
  4. Multiple it again by 3
  5. Sum all digits of the new number


And, take final number’s item from below

  1. Rajma
  2. Paneer
  3. Chicken
  4. Pizza
  5. Burger
  6. Gulab Juman
  7. Chowmein
  8. Ice cream
  9. Cow’s shit

Hehe,,, share it with your friends 🙂
No matter what is the number you choose it will come out to be 9.

Surprised, How does it work, Check out the explanationHide Explanation
Lets assumes the number you chose is x.
Now, Perform the steps from step 2

3x
3x + 3 = 3(x+1)
3*3(x+1) = 9(x+1)

9(x+1) is divisible by 9 and we know that sum of all the digits of a number divisible by 9 is also a multiple of 9, here x can vary from 1 to 9, so the final number can vary from 18 to 90, sum of the digits of these will always be 9.

Checkout more Number Puzzles Tags: Number Tricks, Solved Puzzles

Get Age from your shoe size

July 18, 2013 by puzzler Leave a Comment

You can figure out someone’s age from his shoe size, lets apply it to you

  1. Take your shoe size
  2. Multiply it by 5
  3. Add 50
  4. Multiply by 20
  5. Add 1013
  6. Subtract the year you were born

The first digit is your shoe size while the last 2 digits are your age 🙂

Now, Share it with your friends to surprise them 🙂

Surprised, How does it work, Check out the explanationHide Explanation
Lets assume the shoe size you took is x, we will perform all operations on x now

From step 2
5x
5x + 50
100x + 1000
100x + 2013

What is your age? = Subtract your birth year from the current year, i.e 2013 – your birth year.

Thus after subtracting your birth year on step 6, what remains is 100x + your age.
Now shoe size is generally from 1 to 9 max and your age will be less than 99, so first digit becomes your shoe size remaining two digits becomes your age.

By now, you must have understood, that this will not work for the people with shoe size more than 9 or older than 99.

Checkout more Number Puzzles Tags: Number Tricks, Solved Puzzles

Artists and paintings #56

July 15, 2013 by puzzler Leave a Comment

If 5/2 artists make 5/2 paintings using 5/2 canvases in 5/2 days then how many artists are required to make 25 paintings using 25 canvases in 25 days?

Check your answer:-

Tried enough already?
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Answer is 5/2 artists required to make 25 paintings in 25 day.
How?
If 5/2 artists make 5/2 paintings using 5/2 canvas in 5/2 days,
We can say that 5/2 artists make 1 painting using 1 canvas in 1 day.(its not 1 artist, most people do this mistake).

From above we can say 5/2 artists can make 25 paintings using 25 canvases in 25 days.

Checkout more Number Puzzles Tags: medium, Solved Puzzles

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