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Friday, 07 August 2026
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Mathematics Past Questions and Answers

Jamb Mathematics Questions

Question 521:
In the Figure FD\\AC, the area of AEF = 6sq.cm. AE = 3cm, BC = 3cm, CD = 5cm, < BCD is an obtuse angle. Find the length of BD.
  • A \(\sqrt{33}\)
  • B 6
  • C 4
  • D 2\(\sqrt{13}\)
  • E 4\(\sqrt{5}\)
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Question 522:
The mean of the numbers 1.2, 1.0, 0.9, 1.4, 0.8, 0.8, 1.2 and 1.1 is
  • A 1.5
  • B 0.8
  • C 1.0
  • D 1.02
  • E 1.05
View Answer & Explanation
Question 523:
The mean of the numbers 1.2, 1.0, 0.9, 1.4, 0.8, 0.8, 1.2 and 1.1 is
  • A 1.5
  • B 0.8
  • C 1.0
  • D 1.02
  • E 1.05
View Answer & Explanation
Question 524:
\((1.28 \times 10^{4}) \div (6.4 \times 10^{2})\) equals
  • A 2 x 10<sup style='font-size: smaller;'>-5</sup>
  • B 2 x 10<sup style='font-size: smaller;'>-1</sup>
  • C 2 x 10<sup style='font-size: smaller;'>1</sup>
  • D 2 x 10<sup style='font-size: smaller;'>-4</sup>
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Question 525:
If the value of \(\pi\) is taken to be \(\frac{22}{7}\), the area of a semi-circle of diameter 42m is
  • A 5544m<sup style='font-size: smaller;'>2</sup>
  • B 1386m<sup style='font-size: smaller;'>2</sup>
  • C 132m<sup style='font-size: smaller;'>2</sup>
  • D 264m<sup style='font-size: smaller;'>2</sup>
  • E 693m<sup style='font-size: smaller;'>2</sup>
View Answer & Explanation