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Cook the egg for 15 minutes puzzle

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You are trying to cook an egg for exactly fifteen minutes, but instead of a timer, you are given two ropes which burn for exactly 1 hour each. The ropes, however, are of uneven densities – i e , half the rope length-wise might take only two minutes to burn. How can you cook the egg for exactly fifteen minutes?
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Four rivers and three temples

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Puzzle Time:
Four rivers and three temples

All the rivers are magical, moment a worshiper crosses a river with any number of flowers, it becomes double. (For eg 1 flower becomes 2 flowers, 2 become 4 and so on).

How many minimum number of flowers a worshiper needs 2 carry from beginning such that he offers equal number of flowers in all the three temples, and he is left with zero flowers at the end of fourth river.

Solve this ??

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Tried enough already?

Click here to See Solution

Lets assume that he offers x flowers at every temple, thus he must have only x flowers left at the end of 3rd temple, otherwise he will not have zero flowers at the end of fourth river.

also we can say that after offering flowers at second temple he should be left with x/2 flowers.
similarly after offering flowers at first temple he should be left with (3x/2)/2 flowers.
Thus he should be carrying (x + 3x/4)/2 flowers initially, i.e. 7x/8 flowers initially.

For number of flowers to be integer, x =8, thus he must carry 7 flowers initially and offer 8 flowers at each temple.

Number Puzzle #123

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Guess the number in middle of the triangle

number puzzle 123

 

7 5 3 => 26

2 1 3 => 5

8 6 2 => 44

4 9 5 => ?

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Click here to See Solution
let 3 numbers be a , b , c s.t. c>b>a
then here (b)x(c)-(a)^2 = output
In short: Multiplication of 2 highest numbers and then subtract by square of the smaller number.
so 7 5 3 ; 7*5-9=26
2*3-1 =5
8*6-4=44
9*5-16=29

Thus 29 is the answer.

answered by Anshul Singh

Solve 36 % 6 x 3 -9 + 1

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Kids math puzzle #1 36%6*3-9+1 = ?

Kids math puzzle #1
36%6*3-9+1 = ?

Check your answer:-

Tried enough already?



Click here to See Answer with explanation

Here as there are no braces, operators will work as per their precedence.
division and multiplication has same precedence and addition and subtraction has same precedence. Also / and * has higher precedence then + and -.
Thus first % and * should operate, now they being of the same precedence, they will work from left to right order thus % will operate first and the * will work on its result.

Thus 36%6*3 -9 +1 => 6*3 -9 +1 => 18 -9 + 1=> 10

Number Puzzle #122

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Which number should replace the question mark ?

Number Puzzle #122

Number Puzzle #122

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Tried enough already?
Click here to See Solution
2+1=3
3+1=4
7+3=10
13+3=16
………..
0+1=1
2+1=3
2+3=5
10+3=13

answer by sakshi

Find celebrity in the party

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There are (n+1) people in a party, they might or might not know each others names.

There is one celebrity in the group(total n +1 people), celebrity does not know any of n peoples by name and all n people know celebrity by name.

You are given the list of people’s names(n+1), You can ask only one question from the people. Do you know this name ?

How many maximum number of questions you need to ask to know the celebrity name?

Note: assume all names are unique. and you know the persons by name(but don’t know if he is celebrity)

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