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Friday, 06 November 2026
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Mathematics Past Questions and Answers

Jamb 1983 Mathematics Questions

Question 41:
The figure FGHK is a rhombus. What is the value of angle X?
  • A 30<sup style='font-size: smaller;'>o</sup>
  • B 90<sup style='font-size: smaller;'>o</sup>
  • C 150<sup style='font-size: smaller;'>o</sup>
  • D 120<sup style='font-size: smaller;'>o</sup>
  • E 60<sup style='font-size: smaller;'>o</sup>
View Answer & Explanation
Question 42:
PQRS is a desk of dimensions 2m x 0.8 which is inclined at 30o to the horizontal. Find the inclination of the diagonal PR to the horizontal
  • A 30<sup style='font-size: smaller;'>o</sup> 35'
  • B 30<sup style='font-size: smaller;'>o</sup> 32'
  • C 15<sup style='font-size: smaller;'>o</sup> 36'
  • D 10<sup style='font-size: smaller;'>o</sup>
  • E 10<sup style='font-size: smaller;'>o</sup> 42'
View Answer & Explanation
Question 43:
If O is the centre of the circle in the figure, find the value of x
  • A 50
  • B 260
  • C 100
  • D 65
  • E 130
View Answer & Explanation
Question 44:
PQRS isa cyclic quadrilateral which PQ = PS. PT is a tangent to the circle and PQ makes an angle of 50o with the tangent as shown in the figure. What is the size of QRS?
  • A 50<sup style='font-size: smaller;'>o</sup>
  • B 40<sup style='font-size: smaller;'>o</sup>
  • C 110v
  • D 80<sup style='font-size: smaller;'>o</sup>
  • E 100<sup style='font-size: smaller;'>o</sup>
View Answer & Explanation
Question 45:
The farm yield of four crops on a piece of land in Ondo are represented on the pie chart. what is the angle of the sector occupies by Okro in the chart?
  • A 11<sup style='font-size: smaller;'>o</sup>
  • B 19\(\frac{1}{3}\)<sup style='font-size: smaller;'>o</sup>
  • C 33\(\frac{1}{3}\)<sup style='font-size: smaller;'>o</sup>
  • D 91\(\frac{1}{3}\)<sup style='font-size: smaller;'>o</sup>
  • E 91<sup style='font-size: smaller;'>o</sup>
View Answer & Explanation