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Sunday, 02 August 2026
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Mathematics Past Questions and Answers

Jamb Mathematics Questions

Question 201:
If y = x Sin x, find \(\frac{dy}{dx}\) when x = \(\frac{\pi}{2}\)
  • A \(\frac{- \pi}{2}\)
  • B -1
  • C 1
  • D \(\frac{ \pi}{2}\)
View Answer & Explanation
Question 202:
If temperature t is directly proportional to heat h, and when t = 20oC, h = 50 J, find t when h = 60J
  • A 24<sup style='font-size: smaller;'>o</sup>C
  • B 20<sup style='font-size: smaller;'>o</sup>C
  • C 34<sup style='font-size: smaller;'>o</sup>C
  • D 30<sup style='font-size: smaller;'>o</sup>C
View Answer & Explanation
Question 203:
Evaluate 1 - (\(\frac{1}{5}\) x \(\frac{2}{3}\)) + ( 5 + \(\frac{2}{3}\))
  • A 4
  • B 3
  • C 2\(\frac{2}{3}\)
  • D 3\(\frac{2}{3}\)
View Answer & Explanation
Question 204:
Given m = N\(\sqrt{\frac{SL}{T}}\) make T the subject of the formula
  • A \(\frac{\text{NSL}}{M}\)
  • B \(\frac{N^2SL}{M^2}\)
  • C \(\frac{N^2SL}{M}\)
  • D \(\frac{NSL}{M^2}\)
View Answer & Explanation
Question 205:
A binary operation \(\otimes\) is defined by \(m \otimes n = mn + m - n\) on the set of real numbers, for all m, n \(\in\) R. Find the value of 3 \(\otimes\) (2 \(\otimes\) 4).
  • A 6
  • B 25
  • C 15
  • D 18
View Answer & Explanation