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 1021: Find the value of a if the line 2y - ax + 4 = 0 is perpendicular to the line y + (x/4) - 7 = 0 Options:
  A) -4
  B) 4
  C) 8
  D) -8
  Show Answer
  The correct answer is C .
• Question 1022: If k + 1; 2k - 1, 3k + 1 are three consecutive terms of a geometric progression, find the possible values of the common ratio Options:
  A) 0, 8
  B) -1, $\frac{5}{3}$
  C) 2, 3
  D) 1, -1
  Show Answer
  The correct answer is B .
• Question 1023: If two smaller sides of a right angled triangle are 4cm and 5cm, find its area Options:
  A) 10 cm²
  B) 6 cm²
  C) 24 cm²
  D) 8 cm²
  Show Answer
  The correct answer is A .
• Question 1024: If $P=\sqrt{\frac{r{s}^3}{t}}$, express r in terms of p, s and t Options:
  A) $\frac{p^{2}t}{s^3}$
  B) $\frac{p^{3}t}{s^3}$
  C) $\frac{p^{3}t}{s^2}$
  D) $\frac{p^t}{s^3}$
  Show Answer
  The correct answer is A .
• Question 1025:

  Three children shared a basket of mangoes in such a way that the first child took $\frac{1}{4}$ of the mangoes and the second $\frac{3}{4}$ of the remainder. What fraction of the mangoes did the third child take?

  Options:
  A) $\frac{3}{16}$
  B) $\frac{7}{16}$
  C) $\frac{9}{16}$
  D) $\frac{13}{16}$
  Show Answer
  The correct answer is A .
• Question 1026: Find x if (x_base4)² = 100100_base2 Options:
  A) 6
  B) 12
  C) 100
  D) 210
  E) 110
  Show Answer
  The correct answer is B .
• Question 1027: 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 1028: x varies directly as the product of u and v and inversely as their sum. If x = 3 when u = 3 and v = 1, what is the value of x if u = 3 and v = 3? Options:
  A) 3
  B) 4
  C) 6
  D) 9
  Show Answer
  The correct answer is C .
• Question 1029: A trader bought 100 oranges at 5 for N1.20, 20 oranges got spoilt and the remaining were sold at 4 for N1.50. Find the percentage gain or loss. Options:
  A) 30% gain
  B) 25% gain
  C) 30% loss
  D) 25% loss
  Show Answer
  The correct answer is B .
• Question 1030: Find y, if $\sqrt{12}-\sqrt{147}+y\sqrt{3}=0$ Options:
  A) 5
  B) 1
  C) 7
  D) 3
  Show Answer
  The correct answer is A .