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 1411:

  

  The pie chart shows the income of a civil servant in a month. If his monthly income is N600, find his monthly basic salary

  Options:
  A) N2000
  B) N2600
  C) N3100
  D) N3450
  Show Answer
  The correct answer is A .
• Question 1412: Two triangles have the same areas if Options:
  A) two sides in one triangle are equal to two sides in the other
  B) three sides in one triangle are equal to three sides in the other
  C) two angles in the triangle are equal to two angles in the other
  D) three angles in one triangle are equal to three angles in the other
  E) one side and the opposite angle in one triangle are equal to one side and the opposite angle in the other
  Show Answer
  The correct answer is D .
• Question 1413: On a pie chart, there are six sectors of which four angles are 30^o, 45^o, 60^o, 90^o and the remaining two angles are in the ratio 2 : 1. Find the smaller angles of the remaining two angles Options:
  A) 15^o
  B) 30^o
  C) 45^o
  D) 60^o
  Show Answer
  The correct answer is C .
• Question 1414: The size of a quantity first doubles and then increases by a further 16%. After a short time its size decreases by 16%. What is the net increases in size of the quantity? Options:
  A) $\frac{59300}{625}$
  B) $\frac{50900}{625}$
  C) 200%
  D) +100%
  Show Answer
  The correct answer is C .
• Question 1415: If sin $\theta$ = $\frac{m-n}{m+n}$; Find the value of 1 + tan²$\theta$ Options:
  A) $\frac{(m^2+n^2)}{m+n}$
  B) $\frac{(m^2+n^2+2mm)}{4mn}$
  C) $\frac{2(m^2+n^2+mn)}{m+n}$
  D) $\frac{(m^2+n^2+mn)}{m+n}$
  Show Answer
  The correct answer is B .
• Question 1416: Convert 241 in base 5 to base 8, Options:
  A) 71₈
  B) 107₈
  C) 176₈
  D) 241₈
  Show Answer
  The correct answer is B .
• Question 1417:

  The angles of a quadrilateral are 5x-30, 4x+60, 60-x and 3x+61.find the smallest of these angles​

  Options:
  A) 5x - 30
  B) 4x + 60
  C) 60 - x
  D) 3x + 61
  Show Answer
  The correct answer is C .
• Question 1418: A sector of a circle is bounded by two radii 7cm long and an arc length 6cm. Find the area of the sector. Options:
  A) 42cm²
  B) 3cm²
  C) 21cm²
  D) 24cm²
  E) 12cm²
  Show Answer
  The correct answer is C .
• Question 1419: Solve for x in the equation x³ - 5x² - x + 5 = 0 Options:
  A) 1, - 1, or 5
  B) 1, 1, or -5
  C) -1, 1, or -5
  D) 1, 1, or 5
  Show Answer
  The correct answer is A .
• Question 1420: A student measures a piece of rope and found that it was 1.26m long. If the actual length of the rope is 1.25m, what was the percentage error in the measurement? Options:
  A) 1.40%
  B) 0.01%
  C) 0.25%
  D) 6.9%
  E) 0.80%
  Show Answer
  The correct answer is E .