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 1321: Two fair dice are rolled. What is the probability that both show up the same number of points. Options:
  A) $\frac{1}{36}$
  B) $\frac{7}{36}$
  C) $\frac{1}{2}$
  D) $\frac{1}{6}$
  E) $\frac{1}{6}$
  Show Answer
  The correct answer is E .
• Question 1322: The first and last term of a linear sequence (AP) are 6 and 10 respectively. If the sum of the sequence is 40. Find the number of terms. Options:
  A) nth = 3
  B) nth = 4
  C) nth = 5
  D) nth = 6
  Show Answer
  The correct answer is C .
• Question 1323: If sinx^o = what is sin (90 - x)^o? Options:
  A) $\frac{\sqrt{b^2-a^2}}{b}$
  B) 1$\frac{-a}{b}$
  C) $\frac{b^2-a^2}{b}$
  D) $\frac{a^2-b^2}{b}$
  E) $\sqrt{b^2-a^3}$
  Show Answer
  The correct answer is A .
• Question 1324: Simplify 3 - 2 $÷$ $\frac{4}{5}$ + $\frac{1}{2}$ Options:
  A) 1$\frac{3}{4}$
  B) -1
  C) 1$\frac{3}{10}$
  D) 1
  E) 1$\frac{9}{10}$
  Show Answer
  The correct answer is D .
• Question 1325: Divide the L.C.M of 48, 64, and 80 by their H.C.F Options:
  A) 20
  B) 30
  C) 48
  D) 60
  Show Answer
  The correct answer is D .
• Question 1326: Evaluate $\int \sin 2xdx$ Options:
  A) cos 2x + k
  B) $\frac{1}{2}$cos 2x + k
  C) $-\frac{1}{2}$cos 2x + k
  D) -cos 2x + k
  Show Answer
  The correct answer is C .
• Question 1327: By selling 20 oranges for ₦1.35 a trader makes a profit of 8%. What is his percentage gain or loss if he sells the same 20 oranges for ₦1.10? Options:
  A) 8%
  B) 10%
  C) 12%
  D) 15%
  Show Answer
  The correct answer is C .
• Question 1328: If m and n are the mean and median respectively of the set of numbers 2, 3, 9, 7, 6, 7, 8, 5, find m + 2n to the nearest whole number Options:
  A) 19
  B) 18
  C) 13
  D) 12
  Show Answer
  The correct answer is A .
• Question 1329: Find the median of the numbers 89, 141, 130, 161, 120, 131, 131, 100, 108 and 119 Options:
  A) 131
  B) 125
  C) 123
  D) 120
  Show Answer
  The correct answer is B .
• Question 1330:

  Determine the maximum value of y=3x${}^2$ + 5x - 3

  Options:
  A) 6
  B) 0
  C) 2
  D) No correct option
  Show Answer
  The correct answer is D .