A research team maps 7 lab and field sites connected by roads. To analyze travel efficiency, they calculate the total number of unique two-site routes (visiting one site, then another) between consecutive locations. How many such two-site connections are possible if sites are arranged linearly?

Sat, 02 May 2026 22:14:42 +0000

Title: Mapping Green Catalysts: Analyzing Travel Efficiency Across 7 Linear Lab Sites In a groundbreaking study, a multidisciplinary research team has mapped seven laboratory sites positioned linearly across a field research corridor. By analyzing spatial connectivity, the team calculates unique two-site travel routes to optimize supply chains, personnel movement, and emergency response logistics. Understanding the total number of sequential site-to-site routes is key to assessing travel efficiency and improving operational workflows. ### Understanding Linear Site Arrangement The sites are arranged in a straight line: Site 1—Site 2—Site 3—Site 4—Site 5—Site 6—Site 7. Travel between consecutive locations forms the basis for efficient routing. The core challenge is determining how many unique two-site routes are possible when visiting one site and then proceeding to another, only visiting adjacent sequenced locations.