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If 9999=4, 8888=8

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Number Puzzle #61

number puzzle #61

If 9999=4
8888=8
1816=3
1212=0
Then 1919=?


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See Explanation
Answer is 2.
How?
If you observe carefully, right side number is equal to total number of circles in the left side numbers. thus the answer to 1919 should be 2.

Take 1000 and add 40 to it

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Tricky math question!
Note: This must be done in your head only. Do NOT use paper and pencil or a calculator. Try it.

Take 1000 and add 40 to it. Now add another 1000. Now add 30. Add another 1000. Now add 20. Now add another 1000. Now add 10. What is the total?


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Did you get 5000? The correct answer is actually 4100.
Don’t believe it? Check with your calculator!

Number puzzle from month name

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Here is a list showing the month and a number for each

January 73
February 83
March 51
April 52
May 31
June 42
July 41
August 63

Decipher the logic and find the number for September.

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Answer is 93.
How?
If you observe first number is the number of letters and the second number is the number of vowels present in the month spelling. Thus for september it should be 93.

Guess the car number

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There is a 4 digit card number,
4th digit is double of 1st digit,
2nd n 3rd digits are same,
And last digits together are double of first two digits
Can you guess the car number?


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Tried enough already?
Click here to see Explanation
lets assume first digit is x, then the 4th digit will be 2x.
also assume 2nd and 3rd digits are y.
then from => last two digits are double of first two digits, we can say
y(2x) = 2*(xy)

We can rewrite is as 10y + 2x = 20x + 2 y
8y = 18x
4y = 9x; => y/x = 9/4
as x and y are integers y => 9, x => 4

thus the car number is 4998

Number Puzzle #59

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Find the answer in the image below

number puzzle 59

number puzzle 59


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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.

How many children, ladies and gents are there?

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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?

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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.

Number Puzzle #58

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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 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.

Where is the missing $1 ?

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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?


See Answers

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).

Make 100 by using five numbers

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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.

Number Puzzle #57

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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?
See Solution

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.

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