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 1441:

  If x = {n²+1:n is a positive integer and 1 $\le$ n $\le$ 5}, y = {5n:n is a positive integer and 1 $\le$ n $\le$ 5}, find x $\cap$ y.

  Options:
  A) {5,10}
  B) {5, 10, 15}
  C) {2, 5, 10}
  D) {5, 10, 15, 20}
  Show Answer
  The correct answer is A .
• Question 1442: If y = (1 + x)², find $\frac{dy}{dx}$ Options:
  A) x - 1
  B) 2 + 2x
  C) 1 + 2x
  D) 2x - 1
  Show Answer
  The correct answer is B .
• Question 1443:

  

  From the diagram above, find x

  Options:
  A) 65${}^{\circ }$
  B) 50${}^{\circ }$
  C) 75${}^{\circ }$
  D) 55${}^{\circ }$
  Show Answer
  The correct answer is A .
• Question 1444:

  

  FG is a given straight line and H is a fixed point. The construction marks shown in the diagram indicate the

  Options:
  A) perpendicular bisector of the line
  B) perpendicular bisector of th eline JK
  C) perpendicular bisector of the line HI
  D) perpendicular from H to the line FG
  Show Answer
  The correct answer is D .
• Question 1445: 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 1446: What is the rate of change of the volume v of a hemisphere with respect to its radius r when r = 2? Options:
  A) 8π
  B) 16π
  C) 2π
  D) 4π
  Show Answer
  The correct answer is A .
• Question 1447:

  $\begin{array}{ccccc}\text{Average hourly earnings(N)}& 5-9& 10-14& 15-19& 20-24\\ \text{No. of workers}& 17& 32& 25& 24\end{array}$

  Estimate the mode of the above frequency distribution

  Options:
  A) 12.2
  B) 12.27
  C) 12.9
  D) 13.4
  Show Answer
  The correct answer is B .
• Question 1448: Evaluate (1/2 - 1/4 - 1/8 - 1/16 + ...) - 1 Options:
  A) 2/3
  B) zero
  C) -2/3
  D) -1
  Show Answer
  The correct answer is C .
• Question 1449:

  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 w km 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 1450: A man bought a car for ₦800 and sold it for ₦520. Find his loss per cent Options:
  A) 15%
  B) 25%
  C) 35%
  D) 10%
  Show Answer
  The correct answer is C .