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Days to reach top of the pole?

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Number Puzzle #102
One squirrel tries to climb on a 25 foot pole, If She climbs 5 foot everyday during day time and comes down by 4 foot while sleeping in the night, then how many days to reach to the top of the pole ?
Squirrel and pole number puzzle #102


–in Hindi–
Ek gilhari ek khamba jo ki 25 feet ka he usme chatdi he wo ek dina me 5 feet chadhti he aur rat ko sote time 4 feet niche sarak jati he batao wo kitne din me upar pahuchegi ?

Check your answer:-

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As the squirrel climbs 5 feet and comes down by 4 feet every day, she effectively going up by 1 feet every day

So she will climb 20 feet in 20 days, but on the 21st day she will climb 5 feet and will reach the top thus taking a total of 21 days

A Challenge to genius- Number Puzzle 100

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Have some logic, so think before you answer

Number Puzzle 100 , If 6+6 =3

If 6+6=3,

7+4=5,

8+6=5

Then 3+2= ??

Answer it if you are a genius, Challenge for all of you.

Hint
Its actually simple

Check your answer:-

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Click here to See Solution
logic is first number – half of second number
i.e. 6 -3 = 3
7 -2 = 5
8 -3 = 5
3 -1 = 2

find missing number

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Number Puzzle #99

number Puzzle 99, find missing number 7,17,54,?,1098,6591

What is the missing number ? 7, 17, 54, ???,  1098, 6591

Check your answer:-

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ans is 219 as 7, (7×2)+3=17, (17×3)+3=54, (54×4)+3=219, (219×5)+3=1098, (1098×6)+3=6591
(answered by mugdha)

What is next number?

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Number Puzzle #98

Number puzzle 98, Next number, 0,6,6,60,??

Whats is the next number in this series 0,6,6,60,??

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alternate square or cube minus the number in the series of 1,2,3,4,5,6,7…

(1²-1)=0
(2³-2)=6
(3²-3)=6
(4³-4)=64
(5²-5)=20

Four temples and a person

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One person has some money in his pocket, He visits four temple on the way.
As soon as he enters a temple, his money gets double and he offers Rs. 100 in each temple. thus his pocket gets empty after he returns from the fourth temple.
How much money he had initially ?

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Let the person have Rs x with him initially.

When he reached 1st temple his money becomes double that means 2*x or 2x. After he leaves 1st temple remaining amount is 2x-100

then after leaving 2nd temple he have [2*(2x-100)]-100 = 4x-300

then after leaving 3rd temple he have [2*(4x-300)]-100 = 8x-700

then after leaving 4th temple he have [2*(8x-700)]-100 = 16x-1500 which should be equal to 0 since he has nothing at the end

So 16x-1500=0
16x=1500
x=1500/16=93.75

OR you can reverse engineer
before the 4th temple he must be having 50, so that it doubles to 100 and offer 100 Rs.
before the 3rd temple he must be having 75 => 150 – 100 => 50 (for 4th temple)
before 2nd temple he must be having 175/2 = 87.5 => 175 -100 => 75 (for 3rd temple)
before 1st temple he must be having 187.5/2 = 93.75=> 187.5 – 100 => 87.5 (for 2nd temple)

Fill the boxes

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Number Puzzle #97

Fill the boxes using (1, 3, 5, 7, 9, 11, 13, 15)

Fill the boxes using (1, 3, 5, 7, 9, 11, 13, 15)

 

B1 + B2 + B3 + B4 + B5 = 30

Fill the boxes using (1, 3, 5, 7, 9, 11, 13, 15)
You can also repeat the numbers.

This question came in UPSC Final Exams held in Dec ’13. You will be glad to note that only Gaurav Agarwal the IAS topper could solve it.

Click here to See Solution
(15-9)+(13-7)+(11-5)+(3+1)+(7+1) = 30

 

Find the Number

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Number Puzzle #96

Find the number

Find the number 2,8,9 3,2,4 3,6,?

Find the number
2,8,9
3,2,4
3,6,?

Check your answer:-

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it is the square of 17,18 and 19 in each row

17*17 => 289
18*18 => 324
19*19 => 361

The Magic 6

by 8 Comments

Number Puzzle #95

Objective:
Make 8 8 8 = 6

Rules:

U can use any mathematical symbol which doesn’t include any numbers.
ex:- u can use +,-,/,! etc.. but u cannot use cube roots which include a number.. and no power can be given.

Go on try it out…

Click here to See Solution
8!!/8*8 = 6 .

8 !! is double factorial which goes as 8*6*4*2

soln by Ramesh

Arrange numbers to get 15 in sum

by 3 Comments

arrange these numbers to get 15 sum in all directions

arrange these numbers to get 15 sum in all directions

Arrange these numbers so that we get sum 15 by adding numbers from any direction(row, column, diagonal)
_2_|_6_|_4_
_1_|_5_|_7_
_3_|_8_|_9_

In Hindi
_2_|_6_|_4_
_1_|_5_|_7_
_3_|_8_|_9_
in number’s ko is tarha arrange karein ke jis taraf se bhi add karein ’15’ answer aaye.
Click here to See Solution
Let’s first get the sequences whose sum is 15
1 5 9
1 6 8
2 4 9
2 5 8
2 6 7
3 4 8
3 5 7
4 5 6

Now in order to make diagonal, rows and columns sum to 15, middle element should be present in atleast 4 sequences.
There is only one numbers which is present in four sequences i.e. 5, so 5 will be the middle element.

Now corner number can be the number which is present in atleast three sequences, numbers present atleast in 3 sequences are 2, 4, 6, 8.

Numbers which are present only in two sequences can not be in corners and middle of the matrix, such numbers are 1, 3, 7, 9.

By using above logic, we can create a matrix easily.
_8_|_3_|_4_
_1_|_5_|_9_
_6_|_7_|_2_

Obviously there will be multiple possible answers by rotating the matrix.

Big Boss Nomination Puzzle

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big boss nomination puzzle
In Big Boss, 7 people nominated 1 people each and in total 6 people were nominated.

One of the guy (Kushal) says, 1 guy was nominated twice, rest 5 were nominated once.

Do you think Kushal is right? if not what are the possibilities of nominations?


Click here to See Answer

Yes he is right, as there are total 7 nominations and 6 people were nominated in total so 1 people got nominated twice.

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