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 1861:

  

  In the diagram above , XZ is the diameter of the circle XZW, with center O and radius 15/2 cm. If XY = 12 cm, find the area of the triangle XYZ

  Options:
  A) 54 cm²
  B) 45 cm²
  C) 27 cm²
  D) 75 cm²
  Show Answer
  The correct answer is A .
• Question 1862:

  

  In the figure above, PQR is a straight line segment, PQ = QT. Triangle PQT is an isosceles triangle, ∠SQR is 75${}^{\circ }$ and ∠QPT is 25${}^{\circ }$. Calculate the value of ∠RST.

  Options:
  A) 45${}^{\circ }$
  B) 55${}^{\circ }$
  C) 25${}^{\circ }$
  D) 50${}^{\circ }$
  Show Answer
  The correct answer is B .
• Question 1863:

  

  Find the square pf the mode

  Options:
  A) 49
  B) 121
  C) 25
  D) 64
  Show Answer
  The correct answer is B .
• Question 1864:

  A man sells different brands of an items. ${}^1{/}_9$ of the items he has in his shop are from Brand A, ${}^5{/}_8$ of the remainder are from Brand B and the rest are from Brand C. If the total number of Brand C items in the man's shop is 81, how many more Brand B items than Brand C does the shop has?

  Options:
  A) 243
  B) 108
  C) 54
  D) 135
  Show Answer
  The correct answer is C .
• Question 1865: Solve the following equation (3x - 2)(5x - 4) = (3x - 2)² Options:
  A) $\frac{-2}{3}$, 1
  B) 1
  C) $\frac{2}{3}$, 1
  D) $\frac{2}{3}$, $\frac{4}{5}$
  Show Answer
  The correct answer is C .
• Question 1866:

  A ship sets sail from port A (86${}^o$N, 56${}^o$W) for port B (86${}^o$N, 64${}^o$W), which is close by. Find the distance the ship covered from port A to port B, correct to the nearest km.

  [Take $\pi$= 3.142 and R = 6370 km]

  Options:
  A) 62 km
  B) 97 km
  C) 389 km
  D) 931 km
  Show Answer
  The correct answer is A .
• Question 1867: Evaluate ${\int }_1^2(x^2-4x)dx$ Options:
  A) $\frac{11}{3}$
  B) $\frac{3}{11}$
  C) $-\frac{3}{11}$
  D) $-\frac{11}{3}$
  Show Answer
  The correct answer is D .
• Question 1868: Simplify 4$\sqrt{27}$ + 5$\sqrt{12}$ − 3$\sqrt{75}$ Options:
  A) 7
  B) − 7
  C) − 7$\sqrt{3}$
  D) 7$\sqrt{3}$
  Show Answer
  The correct answer is D .
• Question 1869: The mean of ten positive numbers is 16. When another number is added, the mean becomes 18. Find the eleventh number Options:
  A) 3
  B) 16
  C) 18
  D) 38
  Show Answer
  The correct answer is D .
• Question 1870: Find the distance between two towns p(45^o N, 30^oW) and Q(15^oS, 30^oW) if the radius of the earth is 7000km. [$\pi =\frac{22}{7}$] Options:
  A) $\frac{1100}{3}$km
  B) $\frac{2200}{3}$km
  C) $\frac{22000}{3}$km
  D) $\frac{1100}{3}$km
  Show Answer
  The correct answer is C .