Neco 2019 Agricultural Science Question 35

Practice objective / multiple choice question 35 from the 2019 Neco Agricultural Science examination.

Neco 2019 Agricultural Science Objective / Multiple Choice Medium Difficulty
Question 35 NECO • 2019 • AGRICULTURAL_SCIENCE • objective

A tomato farmer observes early‑blight symptoms on the lower leaves. The initial infected leaf area is 2 % of the total leaf area. The disease spreads such that each day the infected area increases by 40 % of the current infected area. (i) After how many whole days will at least 50 % of the leaf area be infected? (ii) The recommended fungicide dosage is 2.5 L per hectare for every 10 % increase in infection beyond the first 10 %. If the farm has 3 hectares of tomatoes, how many litres of fungicide are needed when infection reaches 50 %?

Answer Options

Correct Answer A. 10 days; 30 L
B. 9 days; 28 L
C. 8 days; 25 L
D. 12 days; 35 L
Correct Answer
A
Correct Option:
10 days; 30 L

About This Question

This is Neco 2019 Agricultural Science Question 35. It is one of the objective questions from the 2019 Neco Agricultural Science examination.

Difficulty level: Medium .

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