A Number Pyramid is composed of the 10 different numbers 09 with
a top row of 1 number resting on a second row of 2 sitting on a third row
of 3 supported by a bottom row of 4. For example, a Number Pyramid
could be:
0
1 2
3 4 5
6 7 8 9
Given the clues below, can you determine the composition of Number
Pyramid 8?
 The four numbers in row 4, none of which is 6, sum to 12.
 The leftmost number in row 3 minus the rightmost number in row 3 equals 7.
 The number at the apex of Number Pyramid 8 minus the rightmost
number in the bottom row equals 6.
 The number at the apex plus the two numbers in the second row sum to 17.
 The rightmost numbers in the four rows of Number Pyramid 8 add to 15.
 The leftmost number in row 4 minus the second leftmost number in row 4
equals 1.


