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Friday, 07 August 2026
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Mathematics Past Questions and Answers

Jamb Mathematics Questions

Question 516:
The vectors a and b are given in terms of two perpendicular units vectors i and j on a plane by a = 2i - 3j, b = -i + 2j. Find the magnitude of the vector a + 3b
  • A 2
  • B 4
  • C \(\sqrt{10}\)
  • D 35
  • E 2.2
View Answer & Explanation
Question 517:
Add the same number to the numerator and denominator of \(\frac{3}{18}\). If the resulting fraction is \(\frac{1}{2}\), then the number added is
  • A 13
  • B 14
  • C 15
  • D 12
  • E 11
View Answer & Explanation
Question 518:
The smallest number such that when it is divided by 8 has a remainder of 6 and when it is divided by 9, has a remainder of 7 is
  • A 387
  • B 493
  • C 502
  • D 441
  • E 634
View Answer & Explanation
Question 519:
In the figure, DE//BC: DB//FE: DE = 2cm, FC = 3cm, AE = 4cm. Determine the length of EC.
  • A 4cm
  • B 6cm
  • C 3cm
  • D 2cm
  • E 1cm
View Answer & Explanation
Question 520:
In the figure, AB is parallel to CD then x + y + z is
  • A 185<sup style='font-size: smaller;'>o</sup>
  • B 200<sup style='font-size: smaller;'>o</sup>
  • C 270<sup style='font-size: smaller;'>o</sup>
  • D 360<sup style='font-size: smaller;'>o</sup>
  • E 195<sup style='font-size: smaller;'>o</sup>
View Answer & Explanation