The numbers 1 up to and including 8 must be put in the circles of the depicted net. However, numbers in neighbouring circles must differ more than 1. So, for example, circles connected to a circle with a 4 may not contain a 3 or a 5.

Think that one was easy? Try this one.

The numbers 1 up to and including 9 must be put in the circles of the second figure in such a way that the sum of the corners of each of the 7 triangles (4 small ones and 3 large ones) is equal.

To answer in the comments, give the numbers in order for each row of the two figures.

The answer for 1) is

ReplyDelete5 3

2 8 1 7

6 4

Answer for 2) is

3 7

5 1 9 2

6

8 4

Ans-1:

ReplyDelete3 5

6 8 1 7

2 4

Ans-2 :

8 1

3 4 5 9

6

7 2