If 7 of 9 went decimal

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Here is a maths teaser for you ..

What whole number which when used to multiply ANY other whole number of any size ....and the component parts of that resulting number are added together ALWAYS return the original Whole number you started with ?

If you know this one already ...dont answer 'till a few have tried to work it out ..
The Answer later if you haven't already worked it out..
lol
 
..and again ..
the orange seller and the toll bridges ..
A young girl returning from market after selling oranges ....wanted to get home quickly so decided to use the toll bridges instead of going the long way round.
When she reached the first bridge she decided to try and barter passage ..saying to the man in charge.
I will give you half the oranges left in my sack ..plus half an orange if you let me pass ..
The bridge operative agreed to this ..and she went on her way ...until she reached the next bridge where she repeated her offer ...
The second operative agreed ...and allowed her to continue home ..
One more toll bridge stood in her way ...so she made the offer again and it was accepted ....which emptied her sack ...but hastened her journey home ...
How many oranges did she have left in her sack after her day at the market ..when she reached the first bridge.
?
 
Vipersan said:
..and again ..
the orange seller and the toll bridges ..
A young girl returning from market aftet selling oranges ....wanted to get home quickly so decided to use the toll bridges instead of going the long way round.
When she reached the first bridge she decided to try and barter passage ..saying to the man in charge.
I will give you half the oranges left in my sack ..plus half an orange if you let me pass ..
The bridge operative agreed to this ..and she went on her way ...until she reached the next bridge where she repeated her offer ...
The second operative agreed ...and allowed her to coninue home ..
One more toll bridge stood in her way ...so she made the offer again and it was accepted ....which emptied her sack ...but hastened her journey home ...
How many oranges did she have left in her sack after her day at the market ..when she reached the first bridge.
?
Click to expand...
7
 
Take any three digit number, with all the digits being different, e.g. 683. Write it down in reverse, and subtract the smaller from the larger. The answer will always have 9 in the middle and the last digit in the answer subtracted from the 9 will give the first digit. 683 - 386 = 297. Amaze your friends by telling them the correct answer every time, just by knowing the last digit.
 
dxhound2003 said:
Take any three digit number, with all the digits being different, e.g. 683. Write it down in reverse, and subtract the smaller from the larger. The answer will always have 9 in the middle and the last digit in the answer subtracted from the 9 will give the first digit. 683 - 386 = 297. Amaze your friends by telling them the correct answer every time, just by knowing the last digit.
Click to expand...
Well ...might as well own up now ...
The answer to my math riddle is the same ..
for example (9 x 517835761974486) = 4660521857770374

so thats (4+6+6+0+5+2+1+8+5+7+7+7+0+3+7+4 ) = 72
and 7+2 = 9

I suspect our puzzles are basically based on the same amazing mystery DXH
:D

What got me t0 remember these puzzles was the initial post ...
7 of 9
lol

...freaky number 9 ...
 
Why is the number 6 always afraid?

Because seven eight nine...





getmecoat.gif
 
This works in a Dublin accent.

What is really annoyin'?

A six upside down.
 
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