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 1071: If 5, 8, 6 and 2 occur with frequencies 3, 2, 4 and 1 respectively. Find the product of the modal and the median number Options:
  A) 36
  B) 48
  C) 30
  D) 40
  Show Answer
  The correct answer is A .
• Question 1072: A chord of circle of radius 7cm is 5cm from the centre of the maximum possible area of the square? Options:
  A) 4√6 cm
  B) 3√6 cm
  C) 6√6 cm
  D) 2√6 cm
  Show Answer
  The correct answer is A .
• Question 1073: A surveyor measured the length of a obtained 42.55 metres. If his measurement was more than the actual length and the percentage error of his measurement was 8%, calculate the actual length of the land Options:
  A) 39.40 metres
  B) 46.20 metres
  C) 46.25 metres
  D) 46.50 metres
  E) 48.25 metres
  Show Answer
  The correct answer is A .
• Question 1074: Given that tan x = $\frac{2}{3}$, where 0^o d" x d" 90^o, Find the value of 2sinx. Options:
  A) $\frac{2\sqrt{13}}{13}$
  B) $\frac{3\sqrt{13}}{13}$
  C) $\frac{4\sqrt{13}}{13}$
  D) $\frac{6\sqrt{13}}{13}$
  Show Answer
  The correct answer is C .
• Question 1075: In a family of 21 people, the average age is 14years. If the age of the grandfather is not counted, the average age drops to 12 years. What is the age of the grandfather? Options:
  A) 35 years
  B) 40 years
  C) 42 years
  D) 54 years
  Show Answer
  The correct answer is D .
• Question 1076:

  Which of the following values of the variable x, (a)x = 0, (b)x = -3, (c)x = 9, satisfy the inequalities 0 < $\frac{x+3}{x-1}$ < 2?

  Options:
  A) (a), (b), (c)
  B) (c)
  C) None of the choices
  D) All of the above
  Show Answer
  The correct answer is C .
• Question 1077: 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 1078: Three angles of a nonagon are equal and the sum of six other angles is 110^o. Calculate the sixe of one of the equal angles Options:
  A) 210^o
  B) 150^o
  C) 105^o
  D) 50^o
  Show Answer
  The correct answer is D .
• Question 1079:

  

  In this figure, PQ = PR = PS and SRT = 68${}^{\circ }$. Find QPS.

  Options:
  A) 136${}^{\circ }$
  B) 124${}^{\circ }$
  C) 12${}^{\circ }$
  D) 68${}^{\circ }$
  Show Answer
  The correct answer is A .
• Question 1080: Find y if sin y = cos 48° Options:
  A) 21°
  B) 24°
  C) 42°
  D) 48°
  E) 102°
  Show Answer
  The correct answer is C .