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Wednesday, 22 April 2026
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Mathematics Past Questions and Answers

Jamb 2015 Mathematics Questions

Question 86:
The extension of a stretched string is directly proportional to its tension. If the extension produced by a tension of 8 Newton’s is 2cm, find the extension produced by a tension of 12 newton’s.
  • A 2
  • B 1
  • D 3
View Answer & Explanation
Question 87:
Factorize \( x^2 − 2x − 15 \)
  • A (x + 3)<sup style='font-size: smaller;'>2</sup>
  • B (x + 5)(x − 3)
  • C (x − 5)<sup style='font-size: smaller;'>2</sup>
  • D (x − 5)(x + 3)
View Answer & Explanation
Question 88:
If A = (−3,5) and B = (4,−1) find the co-ordinate of the mid point
  • A 2, ½
  • B ½ , 2
  • C 1, ½
  • D 0, 2
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Question 89:
Find the simple interest on N325 in 5years at 3% per annum.
  • A N48.75K
  • B N50.10K
  • C N75.50K
  • D N15.75K
View Answer & Explanation
Question 90:
Simplify (0.09)2 and give your answer correct to 4 significant figures
  • A 0.81
  • B 0.081
  • C 0.0081
  • D 8.0001
View Answer & Explanation