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 701: The ratio of the base area of a hollow cone to that of its curved surface is 1:4. If its base radius is 7cm, calculate the slant height of the cone Options:
  A) 7cm
  B) 22cm
  C) 28cm
  D) 49cm
  E) 154cm
  Show Answer
  The correct answer is C .
• Question 702: Find the exterior angle of a 12 sided regular polygon Options:
  A) 12${}^{\circ }$
  B) 24${}^{\circ }$
  C) 25${}^{\circ }$
  D) 30${}^{\circ }$
  Show Answer
  The correct answer is D .
• Question 703: If x + $\frac{1}{x}$ = 4, find x² + $\frac{1}{x^2}$ Options:
  A) 16
  B) 14
  C) 12
  D) 9
  Show Answer
  The correct answer is B .
• Question 704: If the four interior angles of a quadrilateral are (p + 10)${}^{\circ }$, (p - 30)${}^{\circ }$, (2p - 450${}^{\circ }$, and (p + 15)${}^{\circ }$, then p is Options:
  A) 125${}^{\circ }$
  B) 82${}^{\circ }$
  C) 135${}^{\circ }$
  D) 105${}^{\circ }$
  E) 60${}^{\circ }$
  Show Answer
  The correct answer is B .
• Question 705: The length of a notebook 15cm, was measured as 16.8cm. Calculate the percentage error to 2 significant figures. Options:
  A) 12.00%
  B) 11.00%
  C) 10.71%
  D) 0.12%
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  The correct answer is A .
• Question 706: Find the positive number n such that thrice its square is equal to 12 times the number. Options:
  A) 1
  B) 2
  C) 3
  D) 4
  Show Answer
  The correct answer is D .
• Question 707: Evaluate log 18 + log⁶ - log16${}^{\frac{1}{2}}$ Options:
  A) log 3
  B) log 9
  C) log 20
  D) 3 log 2
  E) 3 log 3
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  The correct answer is E .
• Question 708: Without using table, calculate the value of 1 + sec² 30^o Options:
  A) 2$\frac{1}{3}$
  B) $\frac{2}{15}$
  C) $\frac{5}{3}$
  D) 3$\frac{1}{2}$
  Show Answer
  The correct answer is A .
• Question 709: A man and hid wife went to buy an article costing ₦400. The woman had 10% of the cost and the man 40% of the remainder. How much did they have altogether? Options:
  A) ₦216
  B) ₦200
  C) ₦184
  D) ₦144
  E) ₦100
  Show Answer
  The correct answer is C .
• Question 710: A binary operation $\mathrm{\Delta }$ is defined is defined by a $\mathrm{\Delta }$ b = a + b + 1 for any real numbers a and b. Find the inverse of the real number 7 under the operation $\mathrm{\Delta }$, if the identify element is -1 Options:
  A) -1
  B) 5
  C) -7
  D) -9
  E) 9
  Show Answer
  The correct answer is D .