Question

Calculate the cost of the seed the farmer needs to sow a field with an area of 120,000 square meters. He needs 10 grams of seed per square meter of the field, and one kilogram of seed costs $0.40.

Answer 1

To find the cost of seeds needed for a 120,000 square meter field at a rate of 10 grams per square meter and a cost of $0.40 per kilogram, calculate the total seed mass, convert to kilograms, and multiply by the cost per kilogram. The total cost is $480.

Step-by-step explanation:

To calculate the cost of the seed needed to sow a field with an area of 120,000 square meters, where he needs 10 grams of seed per square meter, and one kilogram of seed costs $0.40, we need to perform a few simple calculations:

• First, determine the total mass of seed required for the entire field by multiplying the area of the field by the seed requirement per square meter:120,000 square meters × 10 grams/square meter = 1,200,000 grams of seed.
• Next, convert the total mass of seeds from grams to kilograms: 1,200,000 grams ÷ 1,000 grams/kilogram = 1,200 kilograms of seed.
• Finally, calculate the cost by multiplying the total mass of the seed in kilograms by the cost per kilogram: 1,200 kilograms × $0.40/kilogram = $480.

Therefore, the cost of the seed required to sow the field is $480.

Answer 2

The total cost of the seed the farmer needs to sow his 120,000 sq meter field is $480.

To calculate the cost of the seed a farmer needs to sow a field of 1,20,000 sq metres where the seeding rate is 10 grams per sq metre, and one kg of seed costs $0.40, we will follow these steps :

1. Calculate total seed required in grams : Since the farmer needs 10 grams of seed per sq metre, we can calculate the total number of grams required for the entire field.

Total seed required (in grams) = Area of the field (in sqm) * Seed rate (in grams per sqm)

Therefore, the total seed required = 120,000 sqm * 10 grams/sqm = 1,200,000 grams

2. Convert grams to kilograms : Since the cost is given per kilogram, we need to convert the total seed requirement from grams to kilograms. There are 1,000 grams in a kilogram.

Total seed required (in kilograms) = Total seed required (in grams) / 1,000

Therefore, the total seed required = 1,200,000 grams / 1,000 = 1,200 kilograms

3. Calculate the total cost : To find the total cost, we multiply the total kilograms of seed required by the cost per kilogram.

Total cost = Total seed required (in kilograms) * Cost per kilogram

Therefore, the total cost = 1,200 kg * $0.40/kg = $480