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South Africa is a country where water shortages occur frequently - NSC Agricultural Technology - Question 6 - 2017 - Paper 1
Question 6
South Africa is a country where water shortages occur frequently. Farmers must use more efficient irrigation systems to conserve water. A farmer wants to water one ... show full transcript
Worked Solution & Example Answer:South Africa is a country where water shortages occur frequently - NSC Agricultural Technology - Question 6 - 2017 - Paper 1
Step 1
Calculate the length and cost of the pipes you will need for the field.
Answer
To calculate the total length of pipes needed for a one-hectare field:
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Determine the perimeter of the field. Since the field is in the shape of a rectangle measuring 100 m by 100 m:
- Length of pipes needed = 13 pipes which are each 100 m long.
- Total length of pipes = 13 imes 100 = 1300 m.
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Calculate the cost of the pipes:
- Cost per metre = R6,50.
- Total cost = 1300 m imes R6,50 = R8450,00.
Step 2
Calculate the total cost of the T-joints and elbows that you will need.
Answer
To calculate the total cost of the T-joints and elbows:
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Calculate the total cost of T-joints:
- Number of T-joints = 19
- Price per T-joint = R8,00
- Total cost of T-joints = 19 imes R8,00 = R152,00.
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Calculate the total cost of elbows:
- Number of elbows = 4
- Price per elbow = R6,50
- Total cost of elbows = 4 imes R6,50 = R26,00.
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Add the total costs together:
- Total cost = R152,00 + R26,00 = R178,00.