Cool Maths Puzzles With Answers

Cool Maths Puzzles With Answers 1 : Maths Logic Riddle
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It can be easily calculated that the digits 0 to 9 can be arranged into 3628800 distinct ten digit numbers.

But i also knowns how many of these numbers are prime.

Do you ?

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     Answer & Explanation

Solution:
Zero

The sum of numbers from zero to nine is 45 and can be divisible by 3 and 9.

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Cool Maths Puzzles With Answers 2 : Most Famous Maths Puzzle
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I can prove why 1 = 2

* Lets say y = x
* Multiply through by x xy = x2
* Subtract y2 from each side xy - y2 = x2 - y2
* Factor each side y(x-y) = (x+y)(x-y)
* Divide both sides by (x-y) y = x+y
* Divide both sides by y y/y = x/y + y/y
* And so... 1 = x/y + 1
* Since x=y, x/y = 1 1 = 1 + 1
* And so... 1 = 2

How is this possible ?

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     Answer & Explanation

Solution:
Step 5 is invalid, because we are dividing by (x-y), and since x=y, we are thus dividing by 0. This is an invalid mathematical operation (division by 0), and so by not following basic mathematical rules

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Cool Maths Puzzles With Answers 3 : Fun Math Puzzle
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Baseball bat and ball cost $50. If the bat cost $49 more than the ball, what is the cost of each

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     Answer & Explanation

Solution:
bat $49.50, ball $0.50

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Cool Maths Puzzles With Answers 4 : Funny Logical Maths Puzzle
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If
1 = 5 ,
2 = 25 ,
3 = 325 ,
4 = 4325

Then 5 = ?

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     Answer & Explanation

Solution:
1

Already stated 1=5 =>5=1

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Cool Maths Puzzles With Answers 5 : Maths Joke Puzzle
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If you had a pizza with crust thickness 'a' and radius 'z', what's the volume of the pizza?

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     Answer & Explanation

Solution:
pi * z * z * a

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Cool Maths Puzzles With Answers 6 : Marbles Puzzle
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There is a box full of marbles,
all but two are blue,
all but two are green,
and all but two are red.

How many marbles are in the box ?

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     Answer & Explanation

Solution:
There are 3 marbles (1 blue, 1 green, and 1 red).

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Cool Maths Puzzles With Answers 7 : Funny Answer to This Riddle
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Right now Mum is 21 years older then her child In 6 years her child will be 5 times younger than she. Where is daddy?

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     Answer & Explanation

Solution:
5*(X+6) = (X+6)+21
4*(X+6) = 21
X+6 = 5.25
X = -0.75

So daddy is at top of mom

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Cool Maths Puzzles With Answers 8 : Tricky Number Equation Riddle
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Can you write number 45 using only the number 4 ?

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     Answer & Explanation

Solution:
44+44/44

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Cool Maths Puzzles With Answers 9 : Solve The Riddle
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A car meter reading shows 72927 miles a palindromic number.
what is the minimum number of miles you would need to travel to see another palindromic number on the car meter reading?

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     Answer & Explanation

Solution:
110
73037

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Cool Maths Puzzles With Answers 10 : Easy Math Riddle
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When asked how old he was, Mayank replied, 'In 2 years I will be twice as old as I was five years ago.' How old is he ?

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     Answer & Explanation

Solution:
12 years

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