- A2L
- BL + 1
- CL − 1
- DL
Step-by-Step Solution
For L = 1 there are 2 posts, for L = 2 there are 3. There is always one more post than the number of gaps: L + 1.
Answer: B) L + 1
Fence posts are placed every 1 m along a straight path L m long, with a post at both ends. Which rule gives the number of posts?
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