Multiple choice general knowledge culture

There are 45 streetlights in all, on a stretch of road, some on one side of the street, some on the other. Each streetlight is at a distance of 30 m from its neighbour. The streetlights on one side are arranged in such a way that each lamp fills a gap between two other streetlights on the opposite side of the road. How long is the stretch of road?

  1. 1350 M

  2. 660 M

  3. 690 M

  4. 900 M
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

With 45 streetlights spaced 30m apart in total, the road has 44 gaps between consecutive lights. The length is 44 × 30 = 1320m. Since lights are staggered on opposite sides filling gaps, this represents the full road length, but the question asks for the stretch with lights, which is 660m (22 gaps on one side).

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