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 491: The sum of the roots of a quadratic equation $\frac{5}{2}$ and product of its roots is 4. The quadratic equation is Options:
  A) $2x^2+5x+8=0$
  B) $2x^2-5x+8=0$
  C) $2x^2-8x+5=0$
  D) $2x^2+8x-5=0$
  E) $2x^2+5x-8=0$
  Show Answer
  The correct answer is B .
• Question 492:

  

  In the diagram above, QR // TS, QR : TS = 2.3, Find the ratio of the area of triangle PQR to the area of the trapezium QRST.

  Options:
  A) 4:9
  B) 4:5
  C) 1:3
  D) 2:3
  Show Answer
  The correct answer is B .
• Question 493: Three brothers in a business deal share the profit at the end of a contact. The first received $\frac{1}{3}$ of the profit and the second $\frac{2}{3}$ of the remainder. If the third received the remaining ₦12000.00 how much profit did they share? Options:
  A) ₦60 000.00
  B) ₦54 000.00
  C) ₦48 000.00
  D) ₦42 000.00
  Show Answer
  The correct answer is B .
• Question 494: 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 495: Evaluate $\frac{1}{3}÷[\frac{5}{7}(\frac{9}{10}-1+\frac{3}{4})]$ Options:
  A) $\frac{28}{39}$
  B) $\frac{13}{39}$
  C) $\frac{39}{28}$
  D) $\frac{84}{13}$
  Show Answer
  The correct answer is A .
• Question 496: Evaluate 5^-3log₅2 x 2^2log₂3 Options:
  A) 8
  B) 1¹/₈
  C) ²/₅
  D) ¹/₈
  Show Answer
  The correct answer is B .
• Question 497:

  If 2${}^{x+y}$ = 16 and 4${}^{x-y}=\frac{1}{32}$, find the values of x and y.

  Options:
  A) x = $\frac{3}{4}$, y = $\frac{11}{4}$
  B) x = $\frac{3}{4}$, y = $\frac{13}{4}$
  C) x = $\frac{2}{3}$, y = $\frac{4}{5}$
  D) x = $\frac{2}{3}$, y = $\frac{13}{4}$
  Show Answer
  The correct answer is B .
• Question 498: If x * y = x + y², find then value of (2*3)*5 Options:
  A) 36
  B) 25
  C) 11
  D) 55
  Show Answer
  The correct answer is A .
• Question 499: A man bought a car for ₦800 and sold it for ₦520. Find his loss per cent Options:
  A) 15%
  B) 25%
  C) 35%
  D) 10%
  Show Answer
  The correct answer is C .
• Question 500:

  $\begin{array}{ccccccc}\text{Marks}& 3& 4& 5& 6& 7& 8\\ \text{Frequency}& 5& y-1& y& 9& 4& 1\end{array}$

  The table above gives the frequency distribution of marks obtained by a group of students in a test. If the total mark scored is 200, the value of y is

  Options:
  A) 11
  B) 15
  C) 9
  D) 13
  Show Answer
  The correct answer is A .