If a crop requires 1.5kg phosphorus per hectare, how many kg of manure will be required per hectare is 1kg manure contains 0.32kg of phosphorus

By: |Published on: Jan 14|Categories: Agricultural Science WAEC| 0 comments

A. 2.47kg?
B. 4.69kg
C. 7.35kg
D. 12.3kg

Correct Answer: Option B

B. 4.69kg

Explanation

If 1kg manure = 0.32kg of phosphorus
xkg manure = 1.5kg of phosphorus
(Cross multiply)

x = 1.5/0.32
= 4.69kg of manure

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