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
jamb 2021agricultural-science

The correct answer is A. 45

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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