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 261:

  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) 38
  D) 30
  Show Answer
  The correct answer is C .
• Question 262:

  Make q the subject of the formula in the equation $\frac{mn}{a^2}-\frac{pq}{b^2}=1$

  Options:
  A) $q=\frac{b^2(mn-a^2)}{a^{2}p}$
  B) $q=\frac{m^{2}n-a^2}{p^2}$
  C) $q=\frac{mn-2b^2}{a^2}$
  D) $q=\frac{b^2(n^2-m{a}^2)}{n}$
  Show Answer
  The correct answer is A .
• Question 263: 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 264:

  Given that the various faces of a fair dice 1, 2, 3, 4, 5, 6 appeared 30, 43, 54, 40, 41, 32 times respectively in a single toss. Picture the figures as being represented in a simple table with number (X) against frequency (f).

  If a pie chart is used to depict the data, the angle corresponding to 4 is?

  Options:
  A) 10°
  B) 16°
  C) 40°
  D) 60°
  Show Answer
  The correct answer is D .
• Question 265: If x² + 4 = 0, then x ? Options:
  A) 4
  B) -4
  C) 2
  D) -2
  E) None of the above
  Show Answer
  The correct answer is E .
• Question 266: A chord of a circle of a diameter 42cm subtends an angle of 60^o at the centre of the circle. Find the length of the mirror arc Options:
  A) 22cm
  B) 44cm
  C) 110cm
  D) 220cm
  Show Answer
  The correct answer is A .
• Question 267: Two brothers invested a total of ₦5,000.00 on a farm project, the farm yield was sold for ₦15,000.00 at the end of the season. If the profit was shared in the ratio 2 : 3, what is the difference in the amount to profit received by the brothers? Options:
  A) ₦2,000.00
  B) ₦4,000.00
  C) ₦6,000.00
  D) ₦10,000.00
  Show Answer
  The correct answer is A .
• Question 268: If x varies inversely as the cube root of y and x = 1 when y = 8, find y when x = 3 Options:
  A) $\frac{1}{3}$
  B) $\frac{2}{3}$
  C) $\frac{8}{27}$
  D) $\frac{4}{9}$
  Show Answer
  The correct answer is C .
• Question 269: Evaluate $\frac{(x-2)(x^2+3x-2)}{x^2-4}$ Options:
  A) 7
  B) 2
  C) 3
  D) 4
  Show Answer
  The correct answer is B .
• Question 270:

  

  The diagram above is a circle with centre C. P, Q and S are points on the circumference. PS and SR are tangents to the circle. ∠PSR = 36${}^{\circ }$. Find ∠PQR

  Options:
  A) 72${}^{\circ }$
  B) 36${}^{\circ }$
  C) 144${}^{\circ }$
  D) 54${}^{\circ }$
  Show Answer
  The correct answer is A .