Jamb Mathematics Past Questions For Year 1981

Question 6

A group of 14 children children received the following scores in a reading test: 35, 35, 26, 26, 26, 29, 29, 29, 12, 25, 25, 25, 25, 17. What was the median score?
 

jamb 1981

  • A. 29
  • B. 26
  • C. 24
  • D. 25
  • E. 23
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Question 7

Which of the following fractions is less than one-third?
 

jamb 1981

  • A. \(\frac{22}{63}\)
  • B. \(\frac{4}{11}\)
  • C. \(\frac{15}{46}\)
  • D. \(\frac{33}{98}\)
  • E. \(\frac{122}{303}\)
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Question 8

A cuboid has a diagonal of length 9cm and a square base of side 4cm. What is its height?
 

jamb 1981

  • A. 9cm
  • B. \(\sqrt{65}\)cm
  • C. \(4\sqrt{2}\)cm
  • D. 7cm
  • E. 6.5cm
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Question 9

Evaluate correct to 4 decimal places 827.51 x 0.015
 

jamb 1981

  • A. 8.8415
  • B. 12.4127
  • C. 124.1265
  • D. 12.4120
  • E. 114.1265
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Question 10

What is the area between two concentric circles of diameters 26cm and 20cm?
 

jamb 1981

  • A. 100\(\pi\)
  • B. 169\(\pi\)
  • C. 69\(\pi\)
  • D. 9\(\pi\)
  • E. 269\(\pi\)
View Answer and Explanation