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 1511:

  A car travels from calabar to Enugu, a distance of P km with an average speed of U km per hour and continues to benin, a distance of Q km, with an average speed of Wkm per hour. Find its average speed from Calabar to Benin

  Options:
  A) $\frac{(p+q)}{pw+qu}$
  B) $\frac{uw(p+q)}{pw+qu}$
  C) $\frac{uw(p+q)}{pw}$
  D) $\frac{uw}{pw+qu}$
  Show Answer
  The correct answer is B .
• Question 1512: The chord ST of a circle is equal to the radius, r, of the circle. Find the length of arc ST. Options:
  A) πr/6
  B) πr/2
  C) πr/12
  D) πr/3
  Show Answer
  The correct answer is D .
• Question 1513: 3 girls share a number of apples in the ration 5:3:2. If the highest share is 40 apples, find the smallest share Options:
  A) 36
  B) 24
  C) 16
  D) 38
  Show Answer
  The correct answer is C .
• Question 1514:

  Taking the period of day light on a certain day to be from 5.30a.m to 7.00p.m. Calculate the angle of a pie chart designed to show the periods of the day light and of darkness on that day

  Options:
  A) 187^o30'
  B) 172^o30'
  C) 195^o165'
  D) 202^o30' 157^o 30'
  Show Answer
  The correct answer is D .
• Question 1515: Each of the interior angles of a regular polygon is 140^o. Calculate the sum of all the interior angles of the polygon Options:
  A) 1080^o
  B) 1260^o
  C) 1800^o
  D) 2160^o
  Show Answer
  The correct answer is B .
• Question 1516: if x is the addition of the prime numbers between 1 and 6; and y the H.C.F. of 6, 9, 15. Find the product of x and y Options:
  A) 27
  B) 30
  C) 33
  D) 90
  Show Answer
  The correct answer is B .
• Question 1517: Find the value of ${\int }_0^{\pi }\frac{co{s}^2\theta -1}{si{n}^2\theta }d\theta$ Options:
  A) π
  B) π/2
  C) -π/2
  D) -π
  Show Answer
  The correct answer is D .
• Question 1518: The numbers 3, 2, 8, 5, 7, 12, 9 and 14 are the marks scored by a group of students in a class test. If P is scored by an group of students in a class test. If P is the mean and Q the median, the P + Q is Options:
  A) 18
  B) 17$\frac{1}{2}$
  C) 16
  D) 15
  Show Answer
  The correct answer is D .
• Question 1519: A binary operation θ defined on the set of real number is such that xθy = xy/6 for all x, y ∈ R. Find the inverse of 20 under this operation when the identity element is 6 Options:
  A) ¹/₁₂
  B) ¹⁰/₃
  C) ¹/₂₀
  D) ⁹/₅
  Show Answer
  The correct answer is D .
• Question 1520: Simplify and express in standard form $\frac{0.00275\times 0.0064}{0.025\times 0.08}$ Options:
  A) 8.8 x 10^-1
  B) 8.8 x 10^-2
  C) 8.8 x 10^-3
  D) 8.8 x 10³
  Show Answer
  The correct answer is C .