Beach Day by Rodger Bliss
September 2022
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Smart Trees

A gardener planted the mangoes trees in a mathematical ordered way (i.e. he planted tree in rows).
He created total of 19 rows of trees.

Note: There should be more than 2 trees to count as a row.

What is the minimum number of trees required by the gardener to have 19 rows of trees ?

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2 guesses to Smart Trees


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  • Jim

    seven trees will make 19 rows (17 rows of 2 each and 2 rows of 3 each) I can’t figure out any lesser number.

  • Chandramouli Suresh

    1 1 1
    1 1 1 1
    1 1 1 1 1
    1 1 1 1
    1 1 1

    a formation like the above will have 19 trees & 18 rows. (5 + 5) diagonal rows, 5 horizontal rows & 3 vertical rows = 18 rows. Will thin of creating 19 rows. To create 19 trees he may require a minimum of 19 trees.