Mathematics Exam Past Questions and Answers | JAMB, WAEC and NECO

Mathematics looks at measurement, relationships, and properties of numbers and groups using numbers and symbols. Important topics in math include arithmetic, algebra, geometry, and calculus.

• Question 1421: If y = 3t³ + 2t² - 7t + 3, find $\frac{dy}{dt}$ at t = -1 Options:
  A) -1
  B) 1
  C) -2
  D) 2
  Show Answer
  The correct answer is C .
• Question 1422:

  A man runs a distance of 9km at a constant speed for the first 4 km and then 2 km\h faster for the rest of the distance. The whole run takes him one hour. His average speed for the first 4 km is

  Options:
  A) 6 km/h
  B) 8 km/h
  C) 9 km\h
  D) 11 km\h
  E) 13 km\h
  Show Answer
  The correct answer is B .
• Question 1423: A tax player is allowed $\frac{1}{8}$th of his income tax-free, and pays 20% on the remainder. If he pays ₦490.00 tax, what is his income? Options:
  A) ₦560.00
  B) ₦2,450.00
  C) ₦2,800.00
  D) ₦3,920.00
  Show Answer
  The correct answer is C .
• Question 1424: If S = $\sqrt{t^2-4t+4}$, find t in terms of S Options:
  A) S² - 2
  B) S + 2
  C) S - 2
  D) S² + 2
  Show Answer
  The correct answer is B .
• Question 1425:

  The result of rolling a fair die 150 times is as summarized in the table given.

  $\begin{array}{ccccccc}\text{Number}& 1& 2& 3& 4& 5& 6\\ \text{Frequency}& 12& 18& x& 30& 2x& 45\end{array}$

  What is the probability of obtaining a 5?

  Options:
  A) $\frac{3}{10}$
  B) $\frac{1}{5}$
  C) $\frac{1}{6}$
  D) $\frac{1}{10}$
  Show Answer
  The correct answer is B .
• Question 1426:

  A rectangular picture 6cm by 8cm is enclosed by a frame $\frac{1}{2}$cm wide. Calculate the area of the frame.

  Options:
  A) 15sq.cm
  B) 20sq.cm
  C) 13sq.cm
  D) 16sq.cm
  Show Answer
  The correct answer is A .
• Question 1427: What value of s will make the function x(4-x) a maximum Options:
  A) 4
  B) 3
  C) 2
  D) 1
  Show Answer
  The correct answer is C .
• Question 1428:

  Simplify $\frac{0.026\times 0.36}{0.69}$. Leave your answer in standard form.

  Options:
  A) 1.36 x 10^-4
  B) 1.36 x 10^-3
  C) 1.36 x 10^-1
  D) 1.36 x 10^-2
  Show Answer
  The correct answer is D .
• Question 1429: A man sells his new brand car for ₦420,000 at a gain of 15%. What did it cost him? Options:
  A) ₦410,000
  B) ₦365,217
  C) ₦157,250
  D) ₦257,000
  Show Answer
  The correct answer is B .
• Question 1430: Evaluate ∫sec²θ dθ Options:
  A) sec θ tan θ + k
  B) tan θ + k
  C) 2sec θ + k
  D) sec θ + k
  Show Answer
  The correct answer is B .