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 2471: What is the positive difference between the squares of 2.5 and 2.1 to 1 significant figures? Options:
  A) – 2.0
  B) – 184
  C) -1.84
  D) 2
  E) 18.4
  Show Answer
  The correct answer is D .
• Question 2472:

  The sum of the ages of Musa and Lawal is 28 years. After sharing a certain sum of money in the ratio of their ages, Musa gets ₦600 and Lawal ₦800. How old is Lawal?

  Options:
  A) 14 years
  B) 20 years
  C) 12 years
  D) 16 years
  Show Answer
  The correct answer is D .
• Question 2473:

  If w varies inversely as $\frac{uv}{u+v}$ and w =8 when

  u = 2 and v= 6, find a relationship between u, v, w.

  Options:
  A) uvw = 16(u + v)
  B) 16uv = 3w(u + v)
  C) uvw = 12(u + v)
  D) 12uvw = u + v
  Show Answer
  The correct answer is C .
• Question 2474: In a basket, there are 6 grapes, 11 bananas and 13 oranges. If one fruit is chosen at random. What is the probability that the fruit is either a grape or a banana Options:
  A) ⁶/₃₀
  B) ⁵/₃₀
  C) ¹⁷/₃₀
  D) ¹¹/₃₀
  Show Answer
  The correct answer is C .
• Question 2475: If y = (1 - 2x)², find the value of dy/dx at x = -1 Options:
  A) 57
  B) 27
  C) -6
  D) -54
  Show Answer
  The correct answer is D .
• Question 2476:

  

  In the diagram above, QR is in the diameter of the semicircle QR. Find the areas of the figure to the nearest whole number.

  Options:
  A) 89 cm²
  B) 70 cm²
  C) 90 cm²
  D) 80 cm²
  Show Answer
  The correct answer is C .
• Question 2477:

  The locus of pointsequidistant from a fixed point.

  Options:
  A) circle
  B) perpendicular lines
  C) straight line
  D) bisector
  Show Answer
  The correct answer is A .
• Question 2478:

  If x = {n² + 1 : n is positive integer and 1$\le$ n $\le$ 5}, y = {5n : n is positive integer and 1 $\le$ n $\le$ 5}, find x ∩ 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 2479: Given that ${10}^x=0.2$ and ${\log }_{10}2=0.3010$, find x. Options:
  A) -1.3010
  B) -0.6990
  C) 0.6990
  D) 1.310
  E) 0.02
  Show Answer
  The correct answer is B .
• Question 2480: The value of (0.03)³ - (0.02)³ is Options:
  A) 0.019
  B) 0.0019
  C) 0.00019
  D) 0.000019
  E) 0.000035
  Show Answer
  The correct answer is D .