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 981: Ice forms on a refrigerator ice box at rate of (4 - 0.61)g per minute after 1 minute. If initially, there were 2g of ice, find the mass of ice formed in 5 minutes. Options:
  A) 19.5
  B) 17.0
  C) 14.5
  D) 12.5
  Show Answer
  The correct answer is D .
• Question 982: The bearing of a point Y from point x is 150°. What is the bearing of X from Y? Options:
  A) 330°
  B) 240°
  C) 150°
  D) 120°
  E) 30°
  Show Answer
  The correct answer is A .
• Question 983: A flagpole is placed at the top of a tower. The angles of elevation of the bottom and top of the flagpole from a point on the ground 10m away are 40° and 50° respectively. Find the length of the flagpole. Options:
  A) 1.8m
  B) 3.5m
  C) 8.4m
  D) 11.9m
  E) 17.3m
  Show Answer
  The correct answer is B .
• Question 984: W ∝ L² and W = 6 when L = 4. If L = √17 find W Options:
  A) 6⁷/₈
  B) 6⁵/₈
  C) 6³/₈
  D) 6¹/₈
  Show Answer
  The correct answer is C .
• Question 985:

  

  In the diagram, PQRS is a circle center O. PQR is a diameter and ∠PRQ = 40^o. Calculate ∠QSR.

  Options:
  A) 30^o
  B) 40^o
  C) 45^o
  D) 50^o
  Show Answer
  The correct answer is D .
• Question 986: Find a two-digit number such that three times the tens digit is 2 less than twice the units digit, and twice the number is 20 greater than the number obtained by reversing the digits. Options:
  A) 24
  B) 42
  C) 74
  D) 47
  E) 72
  Show Answer
  The correct answer is D .
• Question 987: a binary operation $\oplus$ o the set of rational numbers is defined as x $\oplus$ y = $\frac{x^2-y^2}{2xy}$. Find -5 $\oplus$ 3 Options:
  A) $\frac{8}{15}$
  B) -$\frac{17}{15}$
  C) $\frac{17}{15}$
  D) $\frac{8}{-15}$
  Show Answer
  The correct answer is D .
• Question 988:

  

  The shaded portion in the graph above is represented by

  Options:
  A) y + x - x³ ≥ 0, y - x ≤ 0
  B) y - x + x³ ≥ 0, y - x ≤ 0
  C) y + x - x³ ≤ 0, y + x ≥ 0
  D) y - x + x³ ≤ 0, y + x ≥ 0
  Show Answer
  The correct answer is A .
• Question 989:

  The ages of students in a small primary school were recorded in the table below.

  Age	5-6	7-8	9-10
  Frequency	29	40	38

  
  Estimate the median.

  Options:
  A) 7.725
  B) 6.225
  C) 7.5
  D) 6.5
  Show Answer
  The correct answer is A .
• Question 990: In how many ways can 2 students be selected from a group of 5 students in a debating competition? Options:
  A) 25 ways
  B) 10 ways
  C) 15 ways
  D) 20 ways
  E) 16 ways
  Show Answer
  The correct answer is D .