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 1681: Solve for x, If $\frac{\frac{2}{x}}{\frac{p^2+p^2}{p^2+p^2}}$ = m Options:
  A) $\frac{4pq}{m(p+q)}$
  B) $\frac{2p^2{q}^2}{m(q^2+p^2)}$
  C) $\frac{2pq}{m(q^2+p^2)}$
  D) $\frac{2p^2{q}^2}{m(p^2)}$
  Show Answer
  The correct answer is B .
• Question 1682: An operation * is defined on the set of real numbers by a * b = ab + 2(a + b + 1). find the identity elements Options:
  A) 2
  B) 1
  C) -1
  D) -2
  Show Answer
  The correct answer is C .
• Question 1683: If three unbiased coins are tossed, find the probability that they are all heads Options:
  A) $\frac{1}{2}$
  B) $\frac{1}{3}$
  C) $\frac{1}{9}$
  D) $\frac{1}{8}$
  Show Answer
  The correct answer is D .
• Question 1684: The sum of the interior angle of a regular polygon is 1800${}^{\circ }$. Calculate the size of one exterior angle of the polygon Options:
  A) 30${}^{\circ }$
  B) 24${}^{\circ }$
  C) 18${}^{\circ }$
  D) 12${}^{\circ }$
  Show Answer
  The correct answer is A .
• Question 1685: If (25)^{x - 1} = 64($\frac{5}{2}$)⁶, then x has the value Options:
  A) 7
  B) 4
  C) 32
  D) 64
  E) 5
  Show Answer
  The correct answer is B .
• Question 1686: The binary operation on the set of real numbers is defined by m*n = $\frac{mn}{2}$ for all m, n $\in$ R. If the identity element is 2, find the inverse of -5 Options:
  A) $-\frac{4}{5}$
  B) $-\frac{2}{5}$
  C) 4
  D) 5
  Show Answer
  The correct answer is A .
• Question 1687: An arc of a circle of radius 6cm is 8cm long. Find the area of the sector Options:
  A) 5$\frac{1}{3}$cm²
  B) 24cm²
  C) 36cm²
  D) 84cm²
  Show Answer
  The correct answer is B .
• Question 1688:

  From a point R, 300m north of P, a man walks eastward to a place Q which is 600m from P. Find the bearing of P from Q, correct to the nearest degree

  Options:
  A) 026°
  B) 045°
  C) 210°
  D) 240°
  Show Answer
  The correct answer is D .
• Question 1689: Simplify $\frac{(2m-u{)}^2-(m-2u{)}^2}{5m^2-5u^2}$ Options:
  A) $\frac{3}{5}$
  B) $\frac{2}{5}$
  C) $\frac{2m-u}{5m+u}$
  D) $\frac{m-2u}{m+5u}$
  Show Answer
  The correct answer is A .
• Question 1690:

  

  Evaluate ($\sin$45^o + $\sin$3^o ) in surd form.

  Options:
  A) $\frac{\sqrt{3}}{2\sqrt{2}}$
  B) √3 − $\frac{1}{2}$
  C) $\frac{1}{2}$√2
  D) 1 + $\frac{\sqrt{2}}{2}$
  Show Answer
  The correct answer is D .