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 1081: A number is selected at random between 20 and 30, both numbers inclusive. Find the probability that the number is a prime Options:
  A) $\frac{2}{11}$
  B) $\frac{5}{11}$
  C) $\frac{6}{11}$
  D) $\frac{8}{11}$
  Show Answer
  The correct answer is A .
• Question 1082: Given log 2 = 0.69, log3 = 1, 10 and log7 = 1.90, all to a fixed base, find log 10.5 to the same base without using tables. Options:
  A) 1.03
  B) 2.31
  C) 3.69
  D) 10.5
  E) 25
  Show Answer
  The correct answer is B .
• Question 1083: Correct 241.34(3 x 10^-3)² to 4 significant figures Options:
  A) 0.0014
  B) 0.001448
  C) 0.0022
  D) 0.002172
  Show Answer
  The correct answer is D .
• Question 1084: A square tile has side 30cm. How many of these tiles will cover a rectangular floor of length 7.2m and width 4.2? Options:
  A) 336
  B) 420
  C) 576
  D) 720
  Show Answer
  The correct answer is A .
• Question 1085: If the length of a square is increased by 20% while while its width is decreased by 20% to form a rectangle, what is the ratio of the area of the rectangle to the area of the square? Options:
  A) 6 : 5
  B) 25 : 24
  C) 5 : 6
  D) 24 : 25
  Show Answer
  The correct answer is D .
• Question 1086: Evaluate the inequality $\frac{x}{2}+\frac{3}{4}\le \frac{5x}{6}-\frac{7}{12}$ Options:
  A) $x\ge 4$
  B) $x\le 3$
  C) $x\ge -3$
  D) $x\le -4$
  Show Answer
  The correct answer is A .
• Question 1087: Find the gradient of the line passing through the points (-2, 0) and (0, -4). Options:
  A) 2
  B) -4
  C) -2
  D) 4
  Show Answer
  The correct answer is C .
• Question 1088: The mean of a set of six numbers is 60. If the mean of the first five is 50, find the sixth number in the set. Options:
  A) 105
  B) 100
  C) 95
  D) 110
  Show Answer
  The correct answer is D .
• Question 1089:

  Evaluate 5${}^{-3}$ log${}^2$ $\times$ 2 ${}^{2\log 3}$

  Options:
  A) 8
  B) $\frac{1}{8}$
  C) 1$\frac{1}{8}$
  D) $\frac{2}{5}$
  Show Answer
  The correct answer is B .
• Question 1090: If the function f(fx) = x³ + 2x² + qx - 6 is divisible by x + 1, find q Options:
  A) -5
  B) -2
  C) 2
  D) 5
  Show Answer
  The correct answer is A .