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WAEC Agriculture 2012 Paper

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Question : 18

Total: 49

If the recommended spacing for a tree crop is 2.5m by 4.0m. How many seedlings are required to plant 2 hectares of farmland?

8,000 seedlings
3,000 seedlings
2,000 seedlings
1,000 seedlings

Solution:

Concept:

Number of seedlings required is found by dividing the total farmland area by the area occupied by one seedling.

Explanation:

Total area of farmland =

2

hectares.

Since

1

hectare =

10000 \, \mathrm{m}^2

, total area =

2 \times 10000 = 20000 \, \mathrm{m}^2

.

Spacing per seedling =

2.5 \, \mathrm{m} \times 4.0 \, \mathrm{m} = 10 \, \mathrm{m}^2

.

Seedlings required =

\dfrac{20000}{10} = 2000

seedlings.

Answer:

2000

seedlings.

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