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 Number Pyramid (Posted on 2004-08-20)
A "Number Pyramid" is composed of ten different numbers ( usually 0 - 9 ) with four rows. ONE EXAMPLE of a Number Pyramid is as follows:

0

1   2

3  4   5

6  7   8   9

Given the clues below, determine the composition of a new Number Pyramid.

1) The sum of the two numbers in the second row is 11.

2) The sum of the numbers in the bottom row minus the sum of the numbers in the third row equals 10.

3) The rightmost numbers in the four rows must sum to 18.

4) The middle number in the third row minus the leftmost number in the second row should equal 4.

5) Subtracting the top number in the Pyramid from the rightmost number in the second row leaves 4.

6) In the bottom row, the leftmost number is greater than the second number from the left, while the rightmost number is greater than the second number from the right.

For bonus marks, which of the above clues (if any), are not necessary in order to construct the pyramid?

 See The Solution Submitted by Jane Doe Rating: 3.5556 (9 votes)

 Subject Author Date re: i did it! Rebecca Jaffe 2005-08-30 05:14:22 i did it! Kitten 2004-12-10 05:56:27 original solution Bob Williamson 2004-10-23 00:34:11 solution Detti 2004-10-05 07:52:23 solution Detti 2004-10-05 07:51:55 re: # pyramid Nate Morris-Ricci 2004-09-29 14:34:23 # pyramid david 2004-09-27 14:19:33 No Subject JACKIE TAYLOR 2004-09-11 05:07:41 re: possible solution Rafal 2004-09-10 09:09:50 possible solution Josh 2004-09-08 17:37:15 Necessary clues - part 2 Rafal 2004-09-05 11:13:53 Necessary clues Rafal 2004-09-04 14:13:21 Solution with description Rafal 2004-09-04 13:14:29 Solution? RandyOrton 2004-08-26 11:28:08 Maybe... sarah 2004-08-23 00:02:45 re: Question? dhruv 2004-08-22 10:14:02 Question? Bruce Brantley 2004-08-22 00:00:29 answer? terri 2004-08-21 21:17:35 Full solution! dhruv 2004-08-21 05:14:37 No Subject BJ 2004-08-20 18:21:48 Solution, not computer nikki 2004-08-20 11:24:28 Almost a solution Vishal Baghel 2004-08-20 10:47:14 Explanation needed Gamer 2004-08-20 10:44:33 computer solution Charlie 2004-08-20 09:50:22

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