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 2081: A sector of angle 120° is cut out from a circle of radius 13.5cm. what area of the circle is remaining ? (π = $\frac{22}{7}$) Options:
  A) 14.1cm²
  B) 95.5cm²
  C) 190.9cm²
  D) 381.9cm²
  E) 763.7cm²
  Show Answer
  The correct answer is D .
• Question 2082: If ₦225.00 yields ₦27.00 in x years simple interest at the rate of 4% per annum, find x Options:
  A) 3
  B) 4
  C) 12
  D) 17
  Show Answer
  The correct answer is A .
• Question 2083: The table above gives the frequency distribution of marks obtained by a group of students in a test. If the total mark scored is 200, calculate the value of y Options:
  A) 15
  B) 13
  C) 11
  D) 8
  Show Answer
  The correct answer is C .
• Question 2084:

  ⊗	k	l	m
  k	l	m	k
  l	m	k	l
  m	k	l	m

  The identity element with respect to the multiplication shown in the table above is

  Options:
  A) o
  B) m
  C) l
  D) k
  Show Answer
  The correct answer is B .
• Question 2085:

  

  In the figure, find x in terms of a, b and c.

  Options:
  A) a + b + c
  B) 180${}^{\circ }$ - (a + b + c)
  C) a + b + c
  D) a + b
  E) a + c
  Show Answer
  The correct answer is A .
• Question 2086: Three teachers shared a packet of chalk. The first teacher got 2/5 of the chalk and the second teacher received 2/15 of the remainder. What fraction the the third teacher receive? Options:
  A) 8/15
  B) 11/25
  C) 12/25
  D) 13/25
  Show Answer
  The correct answer is D .
• Question 2087: The first term of an Arithmetic progression is 3 and the fifth term is 9. Find the number of terms in the progression if the sum is 81 Options:
  A) 12
  B) 27
  C) 9
  D) 4
  E) 36
  Show Answer
  The correct answer is C .
• Question 2088: Without using tables, simplify $\frac{1n\sqrt{216}-1n\sqrt{125}-1n\sqrt{8}}{2(1n3-1n5)}$ Options:
  A) -3
  B) 3
  C) $\frac{3}{5}$
  D) $\frac{-3}{2}$
  E) 1n 6 - 2 1n 5
  Show Answer
  The correct answer is C .
• Question 2089:

  

  In the figure, 0 is the centre of circle PQRS and PS//RT. If PRT = 135, then PSO is

  Options:
  A) 67$\frac{1}{2}$${}^{\circ }$
  B) 22$\frac{1}{2}$${}^{\circ }$
  C) 33$\frac{1}{2}$${}^{\circ }$
  D) 45${}^{\circ }$
  E) 90${}^{\circ }$
  Show Answer
  The correct answer is D .
• Question 2090: The pie chart above shows the distribution of students in a secondary school class. If 30 students offered French, how many offered CRK? Options:
  A) 25
  B) 15
  C) 10
  D) 8
  Show Answer
  The correct answer is C .