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: Make r subject of the formula given that $\frac{x}{r+a}=\frac{a}{r}$ Options:
  A) $\frac{a^2}{(x-a)}$
  B) $\frac{a^2}{(x+a)}$
  C) $\frac{a}{x-a}$
  D) $\frac{a}{x+a}$
  Show Answer
  The correct answer is A .
• Question 1452: The difference between the length and width of a rectangle is 6cm and the area is 135cm${}^2$. What is the length? Options:
  A) 25cm
  B) 18cm
  C) 15cm
  D) 24cm
  E) 27cm
  Show Answer
  The correct answer is C .
• Question 1453:

  The probability of an event A is 1/5. The probability of B is 1/3 . The probability both A and B is 1/15. What is the probability of either event A or B or both?

  Options:
  A) $\frac{2}{15}$
  B) $\frac{3}{4}$
  C) $\frac{7}{15}$
  D) $\frac{1}{15}$
  Show Answer
  The correct answer is C .
• Question 1454: A sector of angle 120° is cut out from a circle of radius 13.5cm. what area of the circle is remaining ? (π = $\frac{22}{7}$) Options:
  A) 14.1cm²
  B) 95.5cm²
  C) 190.9cm²
  D) 381.9cm²
  E) 763.7cm²
  Show Answer
  The correct answer is D .
• Question 1455: Find the remainder when 3x³ + 5x² - 11x + 4 is divided by x + 3 Options:
  A) -4
  B) 4
  C) 1
  D) -1
  Show Answer
  The correct answer is C .
• Question 1456: Find y, if $\sqrt{12}-\sqrt{147}+y\sqrt{3}=0$ Options:
  A) 5
  B) 1
  C) 7
  D) 3
  Show Answer
  The correct answer is A .
• Question 1457:

  Evaluate ${\int }_{-2}^1(x-1{)}^{2}dx$

  Options:
  A) $\frac{-10}{3}$
  B) 7
  C) 9
  D) 11
  Show Answer
  The correct answer is C .
• Question 1458: If m * n = n - (m+2) for any real number m and n find he value of 3*(-5) Options:
  A) -6
  B) -8
  C) -10
  D) -12
  Show Answer
  The correct answer is C .
• Question 1459: Write the decimal number 39 to base 2 Options:
  A) 10011 base 2
  B) 110111 base 2
  C) 111001 base 2
  D) 100101 base 2
  E) 19.5 base 2
  Show Answer
  The correct answer is A .
• Question 1460: The range of 4, 3, 11, 9, 6, 15, 19, 23, 27, 24,21 and 16 is Options:
  A) 16
  B) 21
  C) 23
  D) 24
  Show Answer
  The correct answer is D .