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JAMB Economics 2019 Objective — Question 34

Question 34 of 40 from the Joint Admissions and Matriculation Board (JAMB) Economics 2019 Objective paper, with the correct answer and a full explanation.

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The population of Ohaha Local Government Area was 480,000 in December 1980, of which 60% were female. If the population fell by 9,600 by December 1981, what was the total population in December 1981?

  • A. 288,000
  • B. 470,400Correct
  • C. 192,000
  • D. 480,000

Explanation

Females in Dec. 1980 = 480,000×60/100 = 288,000; Males = 480,000−288,000 = 192,000. Population of December 1981 = 480,000−9,600 = 470,400. (Note: exact original wording of this question was partly illegible in the scan; reconstructed to match the answer key's working.)

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