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Wednesday, 22 April 2026
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Mathematics Past Questions and Answers

Jamb 2015 Mathematics Questions

Question 76:
A man with an annual salary of N2000, has allowances of N600. If Income Tax is 5%. How much tax does he pay each year?
  • A 15
  • B 20
  • C 30
  • D 25
View Answer & Explanation
Question 77:
Solve the equation \( 3x^2 − 4x − 5 = 0 \)
  • A X = 1.75 or − 0.15
  • B X = 2.12 or − 0.79
  • C X = 1.5 or − 0.34
  • D X = 2.35 or −1.23
View Answer & Explanation
Question 78:
The first and last term of a linear sequence (AP) are 6 and 10 respectively. If the sum of the sequence is 40. Find the number of terms
  • A Nth = 3
  • B Nth = 4
  • C Nth = 5
  • D Nth = 6
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Question 79:
Find the equation of a line which is form origin and passes through the point (−3, −4)
  • A Y = \( \frac{3x}{4} \)
  • B Y = \( \frac{4x}{3} \)
  • C Y = \( \frac{2x}{3} \)
  • D Y = \( \frac{x}{2} \)
View Answer & Explanation
Question 80:
The amount A to which a principal P amounts at r% compound interest for n years is given by the formula A = P(1 + (r ÷ 100)\(^n\). Find A, if P = 126, r = 4 and n = 2.
  • A N132.50K
  • B N136.30K
  • C N125.40K
  • D N257.42K
View Answer & Explanation