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 521: If f(x) = 2x² - 5x + 3, find f(x + 1) Options:
  A) 2x² - x
  B) 2x² - x + 10
  C) 4x² + 3x + 2
  D) 4x² + 3x + 12
  Show Answer
  The correct answer is A .
• Question 522: S_n is the sum of the first n terms of a series given by S_n = n₂n - 1. Find the nth term Options:
  A) 4n + 1
  B) 4n - 1
  C) 2n + 1
  D) 2n - 1
  Show Answer
  The correct answer is D .
• Question 523: Arrange and $\frac{3}{5}$,$\frac{9}{16}$, $\frac{34}{59}$ and $\frac{71}{97}$ in ascending order of magnitude. Options:
  A) $\frac{3}{5}$, $\frac{9}{16}$, $\frac{34}{59}$, $\frac{71}{97}$
  B) $\frac{9}{16}$, $\frac{34}{59}$, $\frac{3}{5}$ , $\frac{71}{97}$
  C) $\frac{3}{5}$, $\frac{9}{16}$, $\frac{71}{97}$, $\frac{34}{59}$
  D) $\frac{9}{16}$, $\frac{3}{5}$, $\frac{71}{97}$, $\frac{34}{59}$
  Show Answer
  The correct answer is B .
• Question 524: A binary operation $\oplus$ is defines on the set of all positive integers by a $\oplus$ b = ab for all positive integers a, b. Which of the following properties does NOT hold? Options:
  A) closure
  B) identity
  C) positive
  D) inverse
  Show Answer
  The correct answer is D .
• Question 525: The binary operation * is defined on the set of integers such that p * q = pq + p - q. Find 2 * (3 * 4) Options:
  A) 11
  B) 13
  C) 15
  D) 22
  Show Answer
  The correct answer is B .
• Question 526: Given an isosceles triangle with length of 2 equal sides t units and opposite side √3t units with angle θ. Find the value of the angle θ opposite to the √3t units. Options:
  A) 100°
  B) 120°
  C) 30°
  D) 60°
  Show Answer
  The correct answer is B .
• Question 527: The sixth term of an A.P is half of its twelfth term. The first term of the A.P is equal to Options:
  A) zero
  B) half of the common difference
  C) double the common difference
  D) the common difference
  Show Answer
  The correct answer is D .
• Question 528:

  Rationalize $\frac{\sqrt{2}+\sqrt{3}}{\sqrt{2}-\sqrt{3}}$

  Options:
  A) $-5-2\sqrt{6}$
  B) $-5+3\sqrt{2}$
  C) $5-2\sqrt{3}$
  D) $5+2\sqrt{6}$
  Show Answer
  The correct answer is A .
• Question 529:

  Simplify $\sqrt[3]{(64r^6{)}^{\frac{1}{2}}}$

  Options:
  A) $\frac{r}{2}$
  B) 2r
  C) $\frac{1}{2r}$
  D) $\frac{2}{r}$
  E) 64r
  Show Answer
  The correct answer is E .
• Question 530:

  If a fair coin is tossed 3 times, what is the probability of getting at least two heads?

  Options:
  A) $\frac{2}{3}$
  B) $\frac{4}{5}$
  C) $\frac{2}{5}$
  D) $\frac{1}{2}$
  Show Answer
  The correct answer is D .