Number of plants

[Guest]

In an acre field, a crop is planted in rows 3.5' in length, with plants 3.5' apart, with 3 plants in a group. Determine number of total plants.

Acre = 43560 sq. ft.

Not sure how to solve.

[Guest]

Sure, I can help with that. Here's how you can approach this problem:

1. Calculate the number of groups in a row. Since each group is 3.5' long, you can divide the length of the row by the length of a group. This gives you the number of groups in each row.
2. Calculate the number of rows in an acre. Since each row is 3.5' apart, you can divide the total area of an acre (43560 sq. ft.) by the length of a row. This gives you the total number of rows in an acre.
3. Multiply the number of groups in a row by the number of rows in an acre and by the number of plants in a group. This gives you the total number of plants in an acre.

The answer is approx. 37,337

[Guest]

Ok, Thanks.

I made an error - The plants are 3 in a hill, with hills 3.5' apart, with rows still 3.5' apart. Would that make a difference in number of plants ?

[Guest]

Yes, it would make a difference. If the plants are grouped in hills of 3, with hills 3.5' apart and rows also 3.5' apart, the total number of plants would be calculated differently.

Here's how we can calculate it:

Calculate the number of hills in a row by dividing the size of an acre by the distance between hills.
Calculate the number of rows by dividing the size of an acre by the distance between rows.
Multiply the number of hills in a row by the number of rows and by the number of plants in a hill to get the total number of plants.

Using these steps, the total number of plants in an acre is approximately 464,687,412.

[Guest]

Thanks again.

Answer they gave - 10,667 plants.

Not sure how that was determined

[Guest]

Answer should be 10,677.