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 1451: If $P=\sqrt{\frac{r{s}^3}{t}}$, express r in terms of p, s and t Options:
  A) $\frac{p^{2}t}{s^3}$
  B) $\frac{p^{3}t}{s^3}$
  C) $\frac{p^{3}t}{s^2}$
  D) $\frac{p^t}{s^3}$
  Show Answer
  The correct answer is A .
• Question 1452: Simplify (√0.7 + √70)² Options:
  A) 84.7
  B) 70.7
  C) 217.7
  D) 168.7
  Show Answer
  The correct answer is A .
• Question 1453:

  

  In the figure, PQR is a semicircle. Calculate the area of the shaded region.

  Options:
  A) 125^{$\frac{2}{7}$}cm²
  B) 149^{$\frac{2}{7}$}cm²
  C) 234^{$\frac{1}{7}$}cm²
  D) 267^{$\frac{1}{2}$}cm²
  Show Answer
  The correct answer is A .
• Question 1454:

  The angle of elevation and depression of the top and bottom of another building, measured from the top of a 24 m tall building, is 30° and 60°, respectively. Determine the second building's height.

  Options:
  A) 24 m
  B) 32√3 m
  C) 24√3
  D) 32 m
  Show Answer
  The correct answer is D .
• Question 1455:

  

  The bar chart above shows the distribution of marks in a class test. If the pass mark is 5, what percentage of students failed the test?

  Options:
  A) 10%
  B) 20%
  C) 50%
  D) 60%
  Show Answer
  The correct answer is C .
• Question 1456: Evaluate $\left|\begin{array}{ccc}2& 0& 5\\ 4& 6& 3\\ 8& 9& 1\end{array}\right|$ Options:
  A) 5y - 2x -18 = 0
  B) 102
  C) -102
  D) -42
  Show Answer
  The correct answer is C .
• Question 1457:
  

  Find the volume of the composite solid above.

  Options:
  A) 2048 cm${}^3$
  B) 2568 cm${}^3$
  C) 2672 cm${}^3$
  D) 1320 cm${}^3$
  Show Answer
  The correct answer is B .
• Question 1458: Simplify $\frac{5+\sqrt{7}}{3+\sqrt{7}}$ Options:
  A) 17 - $\sqrt{7}$
  B) 4 - $\sqrt{7}$
  C) 15 - $\sqrt{7}$
  D) 7 - $\sqrt{7}$
  Show Answer
  The correct answer is B .
• Question 1459: In a school of 150 students, 80 offer French while 60 offer Arabic and 20 offer neither. How many students offer both subjects? Options:
  A) 45
  B) 10
  C) 35
  D) 30
  Show Answer
  The correct answer is B .
• Question 1460: If 5^{(x + 2y)} = 5 and 4^{(x + 3y)} = 16, find 3^{(x + y)} Options:
  A) 7
  B) 1
  C) 3
  D) 27
  Show Answer
  The correct answer is B .