Burak has organized an event of planting trees on the upcoming World Environment Day. He wants to plant same number of trees in each row. Number of plants in each row can be 7 or 9 or 11. The minimum number of trees, required for plantation, is

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Solution

Burak wants to plant 7 or 9 or 11 trees in each row.

$∴$ Total number of trees must be the multiple of $7, 9,$ and $11.$

The minimum number of trees Burak would have is the LCM of $7, 9,$ and $11$ .
$7 = 7 \times 1$
$9 = 3 \times 3 \times 1$
$11 = 11 \times 1$

LCM $= 3 \times 3 \times 7 \times 11 = 693$ .
So, Burak requires minimum $693$ Trees.

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Burak has organized an event of planting trees on the upcoming World Environment Day. He wants to plant same number of trees in each row. Number of plants in each row can be 7 or 9 or 11. The minimum number of trees, required for plantation, is

Burak wants to plant 7 or 9 or 11 trees in each row. ∴ Total number of trees must be the multiple of 7,9, and 11. The minimum number of trees Burak would have is the LCM of 7,9, and 11. 7=7×1 9=3×3×1 11=11×1 LCM =3×3×7×11=693. So, Burak requires minimum 693 Trees.