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Saturday, 07 March 2026
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Mathematics Past Questions and Answers

Neco Mathematics Questions

Question 86:
Evaluate \(1011_{two}\) + \(1101_{two}\) + \(1001_{two}\) - \(111_{two}\)
  • A 10001\(_{two}\)
  • B 11001\(_{two}\)
  • C 110001\(_{two}\)
  • D 10010\(_{two}\)
  • E 10001\(_{two}\)
View Answer & Explanation
Question 87:
Find the area of a triangle ABC such that a = 16cm, b = 14cm, c = 12cm, leave your answer in surd form
  • A 5\(\sqrt{15}\)cm2
  • B 7\(\sqrt{15}\)cm2
  • C 21\(\sqrt{3}\)cm2
  • D 21\(\sqrt{5}\)cm2
  • E 21\(\sqrt{15}\)cm2
View Answer & Explanation
Question 88:
If the first term of an AP is 1.2 and the common difference is also 2, what is the mean of the first five terms?
  • A 2
  • B 4
  • C 6
  • D 8
  • E 10
View Answer & Explanation
Question 89:
The angle subtended by a diameter of a circle at the circumference is a/an
  • A Acute angle
  • B Obtuse angle
  • C Reflex angle
  • D Right angle
  • E Supplementary angle
View Answer & Explanation
Question 90:
Calculate (0.05 × 0.025) ÷ (4.25 × 3.35) and express your answer in standard form
  • A 8.7796 × 105
  • B 8.7796 × 104
  • C 8.7796 × 103
  • D 8.7796 × 10-3
  • E 8.7796 × 10-5
View Answer & Explanation