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 1521: A man invested a sum of ₦280.00 partly at 5% and partly at 4%, if the total interest is ₦12.80 per annum, find the amount invested at 5%. Options:
  A) ₦14.00
  B) ₦120.00
  C) ₦140.00
  D) ₦160.00
  Show Answer
  The correct answer is D .
• Question 1522:

  Given that r =$\sqrt{\frac{3v}{\pi h}}$, make v the subject of the formula

  Options:
  A) v = 3 $\pi r^2$ h
  B) v = $\frac{\pi rh}{3}$
  C) v =  $\frac{\pi r^{2}h}{3}$
  D) v = 3πrh
  Show Answer
  The correct answer is C .
• Question 1523: Determine x + y if $\left(\begin{array}{cc}2& -3\\ -1& 4\end{array}\right)$ $\left(\begin{array}{c}x\\ y\end{array}\right)$ = $\left(\begin{array}{c}-1\\ 8\end{array}\right)$ Options:
  A) 3
  B) 4
  C) 7
  D) 12
  Show Answer
  The correct answer is C .
• Question 1524: Given that 1/2 log₁₀ P = 1, find the value Of P Options:
  A) 10⁴
  B) 10³
  C) 10²
  D) 10¹
  E) 10^-1
  Show Answer
  The correct answer is C .
• Question 1525:

  

  In the diagram above, PQ = 4 cm and TS = 6 cm. If the area of parallelogram PQTU is 32 cm², find the area of the trapezium PQRU

  Options:
  A) 60 cm²
  B) 72 cm²
  C) 48 cm²
  D) 24 cm²
  Show Answer
  The correct answer is B .
• Question 1526: If M represents the median and D the mode of the measurements 5, 9, 3, 5, 7, 5, 8, then (M, D) is Options:
  A) (6, 5)
  B) (5, 8)
  C) (5, 7)
  D) (5, 5)
  E) (7, 5)
  Show Answer
  The correct answer is D .
• Question 1527: Find a factor which is common to all three binomial expressions 4a² - 9b², 8a³ + 27b³, (4a + 6b)² Options:
  A) 4a + 6b
  B) 4a - 6b
  C) 2a + 3b
  D) 2a - 3b
  E) none
  Show Answer
  The correct answer is C .
• Question 1528:
  

  Find the volume of the cylinder above
  [Take $\pi {=}^{22}{/}_7$]

  Options:
  A) 9,856 cm${}^3$
  B) 14,784 cm${}^3$
  C) 4,928 cm${}^3$
  D) 19,712 cm${}^3$
  Show Answer
  The correct answer is B .
• Question 1529: If log₅20 = x, find x Options:
  A) 1.761
  B) 1.354
  C) 1.861
  D) 2.549
  Show Answer
  The correct answer is C .
• Question 1530: From the top of a vertical mast 150m high., two huts on the same ground level are observed. One due east and the other due west of the mast. Their angles of depression are 60^o and 45^o respectively. Find the distance between the huts Options:
  A) 150(1 + $\sqrt{3}$)m
  B) 50( $\sqrt{3}$ - $\sqrt{3}$)m
  C) 150 $\sqrt{3}$m
  D) $\frac{50}{\sqrt{3}}$m
  Show Answer
  The correct answer is B .