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Mathematics Past Questions and Answers

Jamb 1980 Mathematics Questions

Question 26:
Find the solution of the equation x + 2\(\sqrt{x - 8}\) = 0
  • A (4, 16)
  • B (2, 4)
  • C (4, 1)
  • D (1, 16)
  • E (16, 16)
View Answer & Explanation
Question 27:
If it is given that 5x + 1 + 5x = 150, then the value of x is equal to
  • A 3
  • B 4
  • C 1
  • D 2
  • E \(\frac{1}{2}\)
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Question 28:
Solve the system of equation 2x + y = 32, 33y - x = 27
  • A (3, 2)
  • B (-3, 2)
  • C (3, -2)
  • D (-3, -2)
  • E (2, 2)
View Answer & Explanation
Question 29:
Simplify the given expression \(\sqrt{\frac{1 - cos x}{1 + cos x}}\)
  • A \(\frac{1 - cos x}{sin x}\)
  • B 1 - cos x
  • C Sin x
  • D 1 + cos x
  • E \(\frac{1 + cos x}{sin x}\)
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Question 30:
Find the area of the curved surface of a cone whose base radius is 6cm and whose height is 8cm. (take \(\pi\) = \(\frac{22}{7}\))
  • A 188.57cm<sup style='font-size: smaller;'>2</sup>
  • B 1320cm<sup style='font-size: smaller;'>2</sup>
  • C 188cm<sup style='font-size: smaller;'>2</sup>
  • D 188.08cm<sup style='font-size: smaller;'>2</sup>
  • E 10cm<sup style='font-size: smaller;'>2</sup>
View Answer & Explanation