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 7?
 The leftmost numbers in the four rows sum to 20.
 The two numbers in the second row of Number Pyramid 7 sum to 6.
 The leftmost number in row 4 minus the third number in row 4 equals 6.
 The two leftmost numbers in row 3 sum to the rightmost number in row 3.
 The rightmost number in row 2 minus the number at the apex of
Number Pyramid 7 equals 1.
 The rightmost number in row 4 minus the second number in row 4 equals 3.


