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 2501: Find the simple interest on ₦325 in 5years at 3% per annum. Options:
  A) ₦48.75K
  B) ₦50.10K
  C) ₦75.50K
  D) ₦15.75K
  Show Answer
  The correct answer is A .
• Question 2502: If ₦560.70 is shared in the ratio 7 : 2 : 1, what is the smallest share? Options:
  A) ₦392.49
  B) ₦56.70
  C) ₦113.40
  D) ₦112.14
  E) ₦56.07
  Show Answer
  The correct answer is E .
• Question 2503: Convert 72₆ to a number in base three Options:
  A) 2211
  B) 2121
  C) 1212
  D) 1122
  Show Answer
  The correct answer is D .
• Question 2504:

  Simplify 81${}^{\frac{-3}{4}}$ x 25${}^{\frac{1}{2}}$ x 243${}^{\frac{2}{5}}$

  Options:
  A) $\frac{2}{5}$
  B) $\frac{3}{5}$
  C) $\frac{5}{2}$
  D) $\frac{5}{3}$
  Show Answer
  The correct answer is D .
• Question 2505: Two ladders of length 5m and 7m lean against a pole and make angles 45° and 60° with the ground respectively. What is their distance apart on the pole correct to two decimal places? Options:
  A) 9.60m
  B) 6.06m
  C) 2.54m
  D) 2.53m
  E) 2.00m
  Show Answer
  The correct answer is D .
• Question 2506: Find the mean deviation of 20, 25, 21, 27, 28, 29, to the nearest whole number Options:
  A) 2
  B) 3
  C) 4
  D) 5
  E) 6
  Show Answer
  The correct answer is B .
• Question 2507: Solve for x and y $\left(\begin{array}{cc}1& 1\\ 3& y\end{array}\right)$$\left(\begin{array}{c}x\\ 1\end{array}\right)$ = $\left(\begin{array}{c}4\\ 1\end{array}\right)$ Options:
  A) x = 3, y = 8
  B) x = 3, y = -8
  C) x = -8, y = 3
  D) x = 8, y = -3
  Show Answer
  The correct answer is B .
• Question 2508: x varies directly as the product of u and v and inversely as their sum. If x = 3 when u = 3 and v = 1, what is the value of x if u = 3 and v = 3? Options:
  A) 3
  B) 4
  C) 6
  D) 9
  Show Answer
  The correct answer is C .
• Question 2509:

  $\begin{array}{cccc}\text{Marks}& 2& 3& 4\\ \text{Frequency}& 4& 4& y\end{array}$

  The table above shows the frequency distribution of marks obtained by a group of students. If the total mark is 48, find the value of y.

  Options:
  A) 6
  B) 8
  C) 7
  D) 5
  Show Answer
  The correct answer is C .
• Question 2510: 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 .