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The sum of two numbers in 9 and their difference is 3 . find the numbers

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3 and 6

Posted on Oct 11, 2010

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I'm trying to figure out a 3x3 magic square where the rows equal 21 18 10 and the columns equal 15 24 13 using the numbers 1-9


I don't think you can do it! Could you check your numbers.

If we are using the numbers 1-9 once and only once in a 3x3 magic square, the sum of the rows + the sum of the columns should be 90, since 1+2+3+4+5+6+7+8+9 in the rows adds up to 45 and 1+2+3+4+5+6+7+8+9 in the columns adds up to 45.

When trying to solve, the magic number seem to be the sums 24 and 10. To get 24, the only three numbers that add to 24 are 7 + 8 +9. Similarly to get 10, the lowest numbers re 1 and 2 and the smallest big number to use is 7. I then ran out of number trying to get 21, 13 and 15 sums.

Good luck,

Paul

May 21, 2015 | Office Equipment & Supplies

1 Answer

Is 450 divisible by 3 in fractions


450=9*5*10=9*50
9*50/3=3*50=150
To verify if a number is divisible by 3, add the digits in the number. If the sum of digits is divisible by 3, then thumber is also divisible by 3.
Sum of digits in 450 =4+5+0 =9, divisible by 3, so 450 is also divisible by 3.

Jul 06, 2014 | Office Equipment & Supplies

1 Answer

How to use numbers 1-9 to add up three sums using said numbers only once


1+2+3 is 6.
4+5+6 is 15.
7+8+9 is 24.
That's three sums, using each number only once.

There's more to the problem than this, isn't there? Perhaps making them add up to the SAME sum?

Sep 13, 2012 | Office Equipment & Supplies

2 Answers

I want first 20 Armstrong numers



1
2
3
4
5
6
7
8
9
153
370
371
407
1634
8208
9474
54748
92727
93084
548834

Jan 06, 2011 | Computers & Internet

3 Answers

9999555533331111 out of these numbers any 6 numbers total is 21? how


this would be explained on the basis of two FACTS below.......
sum of two odd numbers are always even and
sum of to even numbers are also always even

then how 6 odd numbers (consider 3 pairs, 9 5 3 1 being odd numbers) can make an odd number 21..!!
SO SIMPLE
Make your basics strong...


Aug 14, 2010 | Computers & Internet

3 Answers

Digit problem and solution?


A number is 3 more than 4 the sum of its digits. If the digits are interchanged, the resulting number is 9 more than the given number. Find the number.

Aug 05, 2010 | Brookstone Luggage & Travel

2 Answers

If 5+3=28, 9+1=810, 8+6=214, 5+4=19, 38+20=1858


Hi 5+3=28, 9+1=810, 8+6=214, 5+4=19, 38+20=1858
First find difference and then sum............. If we take 5+3 =28, 5-3=2 and 5+3=8 so answer is 28 like wise
7+3 = 410 So answer is 410

Jul 16, 2010 | Vivendi Excel@ Mathematics Study Skills...

5 Answers

Problem solving Strategy guess and test


The two numbers 3 and 24

3 multiplied by 24 =72
24 divided by 3 =8

Enjoy, and thanks for choosing Fixya!

Mar 20, 2009 | M2K Garfield: It's All About Math Math...

2 Answers

Armstrong problem


could you give me more info plz

Jun 21, 2008 | Computers & Internet

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