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 1271: The solution of the quadratic inequality (x³ + x - 12) ≥ 0 is Options:
  A) x ≥ -3 or x ≤ 4
  B) x ≥ 3 or x ≥ -4
  C) x ≤ 3 or x v -4
  D) x ≥ 3 or x ≤ -4
  Show Answer
  The correct answer is B .
• Question 1272: The mean and the range of the set of numbers 1.20, 1.00, 0.90, 1.40, 0.80, 1.20, and 1.10 are m and r respectively. Find m + r Options:
  A) 1.11
  B) 1.69
  C) 1.85
  D) 2.45
  Show Answer
  The correct answer is B .
• Question 1273: If the mean of five consecutive integers is 30, find the largest of the numbers Options:
  A) 28
  B) 30
  C) 32
  D) 34
  Show Answer
  The correct answer is C .
• Question 1274:

  Evaluate ${\int }_0^{1}4x-6\sqrt[3]{x^2}dx$

  Options:
  A) - $\frac{5}{8}$
  B) - $\frac{8}{5}$
  C) $\frac{8}{5}$
  D) $\frac{5}{8}$
  Show Answer
  The correct answer is B .
• Question 1275: A man sells his new brand car for ₦420,000 at a gain of 15%. What did it cost him? Options:
  A) ₦410,000
  B) ₦365,217
  C) ₦157,250
  D) ₦257,000
  Show Answer
  The correct answer is B .
• Question 1276: If b³ = a^-2 and c^{$\frac{1}{3}$} = a^{$\frac{1}{2}$}b, express c in terms of a Options:
  A) a^{-$\frac{1}{2}$}
  B) a^{$\frac{1}{3}$}
  C) a^{$\frac{3}{2}$}
  D) a^{$\frac{2}{3}$}
  Show Answer
  The correct answer is A .
• Question 1277: A girl walks 45 meters in the direction 050^o from a point Q to a point X. She then walks 24 meters in the direction 140^o from X to a point Y. How far is she then from Q? Options:
  A) 69m
  B) 57m
  C) 51m
  D) 21m
  Show Answer
  The correct answer is C .
• Question 1278:

  A student is using a graduated cylinder to measure the volume of water and reports a reading of 18 mL. The teacher reports the value as 18.4 mL. What is the student's percent error?

  Options:
  A) 2.17%
  B) 1.73%
  C) 2.23%
  D) 1.96%
  Show Answer
  The correct answer is A .
• Question 1279:

  Express 495g as a percentage of 16.5kg

  Options:
  A) 3%
  B) 3 $\frac{1}{3}$%
  C) 15%
  D) 30%
  Show Answer
  The correct answer is A .
• Question 1280: A man and wife went to buy an article costing ₦400. The woman had 10% of the cost and the man 40% of the remainder. How much did they have altogether? Options:
  A) ₦216
  B) ₦200
  C) ₦184
  D) ₦144
  E) ₦100
  Show Answer
  The correct answer is C .