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 581:

  3 - 7, 8 - 12, 13 - 17, 18 - 22. Which of the following is/are true?

  I. The class Interval is 4

  II. The class boundaries are 2.5, 7.5, 12.5, 18.5, 22.5

  III. The mid-marks are 5, 10, 15, and 20

  Options:
  A) I only
  B) II only
  C) III only
  D) I and II only
  E) II and III only
  Show Answer
  The correct answer is A .
• Question 582: The inverse function f(x) = 3x + 4 is Options:
  A) (x-4)/3
  B) (x-5)/5
  C) (x+3)/4
  D) (x+4)/3
  Show Answer
  The correct answer is A .
• Question 583:

  In triangle FGB, < G = 90°, < H = 60°, while in triangle XYZ, < X = 60° and < Y = 30°. Form XYZ write down the ratio equal to $\frac{FG}{FH}$

  Options:
  A) $\frac{YX}{ZX}$
  B) $\frac{YX}{YZ}$
  C) $\frac{ZX}{YZ}$
  D) $\frac{YZ}{XY}$
  Show Answer
  The correct answer is D .
• Question 584:

  Find the simple interest rate percent annum at which N1000 accumulates to N1240 in 3 years.

  Options:
  A) 6%
  B) 8%
  C) 10%
  D) 12%
  Show Answer
  The correct answer is B .
• Question 585:

  

  An unbiased die is rolled 100 times and the outcome is tabulated above.

  What is the probability of obtaining a 5?

  Options:
  A) 1/5
  B) 1/2
  C) 1/6
  D) 1/4
  Show Answer
  The correct answer is A .
• Question 586:

  A trader realises 10x - x${}^2$ Naira profit from the sale of x bags of corn. How many bags will give him the maximum profit?

  Options:
  A) 7
  B) 6
  C) 5
  D) 4
  Show Answer
  The correct answer is C .
• Question 587:

  

  In the diagram given PQ = 10cm, PS = 8cm and < PSR is 60 while < SRQ is a right angle. Find SR

  Options:
  A) 10 $\sqrt{3}$cm
  B) 10cm
  C) 45cm
  D) 14cm
  Show Answer
  The correct answer is D .
• Question 588: Mr Aborowa bought a car for N200,000.00 and later sold it for N170,000.00. What is the percentage loss? Options:
  A) 117.60%
  B) 117.60%
  C) 117.60%
  D) 17.65%
  E) 17.65%
  Show Answer
  The correct answer is E .
• Question 589:

  Evaluate (0.14² x 0.275) ÷ 7(0.02) to 3 decimal places.

  Options:
  A) 0.039
  B) 0.358
  C) 0.033
  D) 0.308
  Show Answer
  The correct answer is A .
• Question 590: A man made a profit of 5% when he sold an article for N60,000.00. How much would he have sell the article to make a profit of 26% Options:
  A) N68,000
  B) N72,000
  C) N65,000
  D) N70,000
  Show Answer
  The correct answer is B .