#### Math Puzzles Question & Answers

# Solve the following puzzle

#### Additional Details

You are going to visit your grandmother on Mother's day. You want to give her two cakes. However, to get to her house you must cross seven bridges. At each bridge is a troll who demands ½ of all of your cakes as the price to pass. However, this troll, being a nice troll, feels bad and gives you back 1 of the cakes that he took.

The puzzle to solve: How many cakes must you leave with to be able to give your grandmother 2 cakes

Do the math and you will see that this puzzle is based on the fact taht (2)=1 and 1+1=2

Subject: Math Puzzles

- Related Questions

Which number multiplied by itself will give the output as 12345678987654321 ?

11 * 11 = 121

111 * 111 = 12321

what we observe is that the square of the number follows a pattern: 2 1's gives 121. 3 1's gives 12321.

so to get 12345678987654321 we need to get square of 9 1's(111,111,111).

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Subject: Math PuzzlesWhat 5 - digit number has the following features :

If we put the numeral 1 at the beginning, we get a number three times smaller than if we put the numeral 1 at the end of the number?

Let the 5 digit number be represented by abcde.

Then the 6 digit number, 1abcde x 3 = abcde1 (another 6 digit number)

Now let Y = abcde

Then (100000 + Y) x 3 = (Y x 10) + 1

300000 + 3Y = 10Y + 1

7Y = 299999

Y = 299999 ÷ 7 = 42857

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Subject: Math PuzzlesArrange four nines(9) and a one(1) and only one mathematical symbol to make it equal to 100 ?

199 - 99 = 100

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Subject: Math Puzzles

In a Certain Country of 5 = 3. If the same proportion holds, what is the value of of 10 ?

A) 4 | B) 6 |

C) 8 | D) 10 |

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Subject: Math PuzzlesReplace each letter for a unique digit so that the equation is correct

(1+9+6+8+3) x (1+9+6+8+3) x (1+9+6+8+3) = 19683

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Subject: Math Puzzles