Who can find an answer different than 7.

Ooooooooooo........ :D

Quote:

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Originally Posted by Cliff Rogers

Ooooooooooo........ :D

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Hey! A different answer than 7.:2tsup:

Why wouldn't Pi work?

Of course it works.

Pi / 2 is a endless decimal.

BUT

(Pi / 2) * 2 = Pi and that is algebra.

Ivan’s post shows it doesn't matter what x (including pi) is , you will get

x + 7 – x = 7

This question works for real numbers, imaginary numbers, rational numbers, irrational numbers, whole numbers or decimals.

:sleep1: Let us know when you've finished Wongo. :D

A certain number consisting of sevens is divisible by 199.

Find the last 4 figures of the quotient without finding the whole quotient.....

In case you've got nothing better to do

Greg

6823

Well I do have something else to do but these matters need to be dealt with first. :D

Wongo.would you please do that computation using chinese graphics in algerbra and display, so we know that your calculations have been properly construed.

Let the last 4 digits be ABCD

So 7777…..77777 = …..ABCD * 199

Let just focus on the ABCD * 199 bit

ABCD * 199 =

A*100000 + B*10000 + C*1000 + D*100 + 0 + 0
+
9*A*10000 + 9*B*1000 + 9*C*100 + 9*D*10 + 0
+
9*A*1000 + 9*B*100 + 9*C*10 + 9*D
Now working from the last digit

D = 3 because 9 * 3 = 27 (carry 2 to the next digit)
C = 2 because 2 + 9 * 3 + 9 * 2 = 47 (carry 4 to the next digit)
B = 8 because 4 + 3 + 9 * 2 + 9 * 8 = 97 (carry 9 to the next digit)
A = 6 because 9 + 2 + 9 * 8 + 9 * 6 = 137 Bingo

Sorry this is the best I could do using a keyboard explain a maths problem.

Try 6823 * 199 and see what happens.

That should help you have a good nights sleep.:)

Quote:

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Originally Posted by Greg Ward

A certain number consisting of sevens is divisible by 199. do you mean only the number 7 several times or series of the first 7 numbers or numbers that add up to seven indivudally, and any number is devisible by 199 eg 7 divided by 199 = 0.0351758 so are we talking whole numbers only like 4623 :?

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Rgds

The number is a series of '7's, no decimals (although that may not affect the outcome in any event...... iI'm not sure)

Now Wongo has the answer for the last 4 digits..... how may '7's in the number itself? (I don't know the answer here and excel won't go past 777777777777777)

Greg

Greg, unless you give me a piece of Maple for free, I wont continue this question. :D

Wongo,
Doesn't the free maple you got yesterday count?

Tell you what. You want a challenge???

Whoever solves the (non-mathematical) answer to my quiz question regarding the use of the all 26 letters of the alphabet to make up 13 x 7 letter words from the 13 x 5 letter words listed deserves timber to the value of $100 (and that about covers your deador......)

Is that OK with you????
Regards

Greg

Quote:

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Originally Posted by Greg Ward

Now Wongo has the answer for the last 4 digits..... how may '7's in the number itself? (I don't know the answer here and excel won't go past 777777777777777)

Greg

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Greg, it will be extremely difficult to find out the answer. It will be a very long number. However, I think by using the Remainder Theorem very cleverly, the answer can be found. Still it will take a while.

So the answer exists but it is hard to work out.:doh:

Yeah, I know, I though you may have a Cray or perhaps a crayfish that may be able to give the answer...

Let's not worry about it. It was a good question and well answered.... it fitted into the 'sevens' area well.

Regards
Greg

Actually I do have the answer and it is

77777777777777777777777777777777777777777777777777777777777777

Now prove me wrong. :D


Wongo (100% in Higher Mathematics 1991 :U)



And the bit of free timber you gave me yesterday wasn't Maple. :D