If 100 pieces of pests is attacking an hectare of cocoa farm and 25% suddenly
AGRICULTURE
JAMB 2018
If 100 pieces of pests is attacking an hectare of cocoa farm and 25% suddenly died while 40% of the remnant is sent for medical examination. What is the number of pest remaining?
- A. 45
- B. 50
- C. 25
- D. 75
Correct Answer: A. 45
Explanation
25% of 100 = 25 pests ? Number of remnants = 100 - 25 = 75 pests 40% of 75 = 30 pests Total pest remaining = 100 - (25 + 30) = 100 - 55 = 45 pests
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