SOLUTION: What is the fewest number of tacks needed to hold up 41 pictures of the same size so that each picture can be seen and each corner is tacked? (Suggestion: Use strategies: making a

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Question 1041969: What is the fewest number of tacks needed to hold up 41 pictures of the same size so that each picture can be seen and each corner is tacked? (Suggestion: Use strategies: making a drawing and solving a simpler problem.)
Answer by robertb(5830) About Me  (Show Source):
You can put this solution on YOUR website!
2*(41+1) = 84 tacks.
In general, for n pictures of the same size, the fewest number of tacks needed is 2(n+1), or 2n+2.