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CBSE Class 10 Maths (Standard) 2023 · Paper 30/1/1 · Question 35(b)

Arithmetic Progressions 5 marks Hard
logs are stacked in the following manner : logs in the bottom row, in the next row, in the row next to it and so on (as shown by an example). In how many rows, are the logs placed and how many logs are there in the top row ?
(Example)
Example of stacked logs in decreasing rows

Answer

The logs are placed in rows, with logs in the top row.

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