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 1271: If y = 2x - sin2x, find dy/dx when x = π/4 Options:
  A) π
  B) -π
  C) π/2
  D) -π/2
  Show Answer
  The correct answer is D .
• Question 1272: The distance travelled by a particle from a fixed point is given as s = (t³ - t² - t + 5)cm. Find the minimum distance that the particle can cover from the fixed point. Options:
  A) 2.3 cm
  B) 4.0cm
  C) 5.2
  D) g
  Show Answer
  The correct answer is B .
• Question 1273:

  Two dice are tossed. What is the probability that the total score is a prime number.

  Options:
  A) $\frac{5}{12}$
  B) $\frac{5}{9}$
  C) $\frac{1}{6}$
  D) $\frac{1}{3}$
  Show Answer
  The correct answer is A .
• Question 1274: If log 10 to base 8 = X, evaluate log 5 to base 8 in terms of X. Options:
  A) $\frac{1}{2}$X
  B) X-$\frac{1}{4}$
  C) X-$\frac{1}{3}$
  D) X-$\frac{1}{2}$
  Show Answer
  The correct answer is C .
• Question 1275: A survey of 100 students in an institution shows that 80 students speak Hausa and 20 students speak Igbo, while only 9 students speak both language. How many students speak neither Hausa nor Igbo? Options:
  A) orange
  B) 9
  C) 11
  D) 20
  Show Answer
  The correct answer is B .
• Question 1276: If y = x cos x, find dy/dx Options:
  A) sin x - x cos x
  B) sin x + x cos x
  C) cos x + x sin x
  D) cos x - x sin x
  Show Answer
  The correct answer is D .
• Question 1277: Let f(x) = 2x + 4 and g(x) = 6x + 7 here g(x) > 0. Solve the inequality $\frac{f(x)}{g(x)}$ < 1. Options:
  A) x < - $\frac{3}{4}$
  B) x > - $\frac{4}{3}$
  C) x > - $\frac{3}{4}$
  D) x > - 12
  Show Answer
  The correct answer is C .
• Question 1278:

  The 10th term of an AP is 32. If the first term is 3/2, what is the 4th term?

  Options:
  A) 35/3
  B) 64
  C) 16
  D) 35/2
  Show Answer
  The correct answer is A .
• Question 1279: If x * y = x + y², find then value of (2*3)*5 Options:
  A) 36
  B) 25
  C) 11
  D) 55
  Show Answer
  The correct answer is A .
• Question 1280: A student measures a piece of rope and found that it was 1.26m long. If the actual length of the rope was 1.25m, what was the percentage error in the measurement? Options:
  A) 0.25%
  B) 0.01%
  C) 0.80%
  D) 0.40%
  Show Answer
  The correct answer is C .