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avatar+397 

deleted.

 Oct 26, 2019
edited by sinclairdragon428  Oct 26, 2019
edited by sinclairdragon428  Nov 20, 2019, 6:53:33 AM
 #1
avatar+105668 
+1

I would be considering the connectors and rods seperately and then add them together

 

connectors

row 0           1

row 1           2

row 2            3

etc

and add them up

 

rods

row 1        2

row 2        4

there will be 2 rods off each connector so row 3 will have 2*3=6 connectors

etc

 

 then add them up.

 

If you have done arithmetic progression you can add these with formula but there are not many so you can just add them all up in you head or on paper.

 

That is a more than ample hint  :)

 Oct 26, 2019
 #2
avatar+397 
-1

thanks! i got 153, is that right?

sinclairdragon428  Oct 27, 2019
 #3
avatar+105668 
0

I do not know. I didn't work it out to the end. I left that to you.

You have been accused many times, from one person anyway, of cheating.

I do not mind helping you to learn and to develop solving techniques but I don't intend to give you final answers.

Melody  Oct 27, 2019

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