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 1471:

  

  In the figure above, what is the equation of the line that passes the y-axis at (0,5) and passes the x-axis at (5,0)?

  Options:
  A) y = x + 5
  B) y = -x + 5
  C) y = x - 5
  D) y = -x - 5
  Show Answer
  The correct answer is B .
• Question 1472: Make x the subject of the equation a(b + c) + $\frac{5}{d}$ - 2 = 0 Options:
  A) c = $\frac{2d-5-b}{ad}$
  B) c = $\frac{2d-5-abd}{ad}$
  C) c = $\frac{2d-5-ab}{ad}$
  D) c = $\frac{5-2d-b}{ad}$
  Show Answer
  The correct answer is B .
• Question 1473:

  Simplify and express in standard form $\frac{0.00275\times 0.00640}{0.025\times 0.08}$

  Options:
  A) 8.8 x 10^-1
  B) 8.8 x 10^-2
  C) 8.8 x 10^-3
  D) 8.8 x 10³
  Show Answer
  The correct answer is C .
• Question 1474:

  A solid hemisphere has a radius of 7 cm. Find the total surface area.

  Options:
  A) 400 cm²
  B) 462 cm²
  C) 66 cm²
  D) 308 cm²
  Show Answer
  The correct answer is B .
• Question 1475: THe cost of renovating a 6 m square room is N540. What is the cost of renovating a 9 m square room? Options:
  A) N1215
  B) N720
  C) N1620
  D) N810
  Show Answer
  The correct answer is D .
• Question 1476:

  A school boy lying on the ground 30m away from the foot of a water tank towel observes that the angle of elevation of the top of the tank is 60${}^o$. Calculate the height of the tank.

  Options:
  A) 60$\sqrt{3m}$
  B) 30$\sqrt{3m}$
  C) 20$\sqrt{3m}$
  D) 10$\sqrt{3m}$
  Show Answer
  The correct answer is B .
• Question 1477:
  

  The histogram above shows the distribution of passengers in taxis of a certain motor park. How many taxis have more than 4 passengers

  Options:
  A) 16
  B) 17
  C) 14
  D) 15
  Show Answer
  The correct answer is B .
• Question 1478: If y = x sinx, find $\frac{dy}{dx}$ Options:
  A) sin x - x cosx
  B) sinx + x cosx
  C) sinx - cosx
  D) sinx + cosx
  Show Answer
  The correct answer is B .
• Question 1479:

  

  The histogram above represents the weights of students who travelled out to their school for an examination. How many people made the trip.

  Options:
  A) 78
  B) 38
  C) 29
  D) 69
  Show Answer
  The correct answer is C .
• Question 1480: Let = $\left(\begin{array}{cc}1& 0\\ 0& 1\end{array}\right)$ p = $\left(\begin{array}{cc}2& 3\\ 4& 5\end{array}\right)$ Q = $\left(\begin{array}{cc}u& 4+u\\ -2v& v\end{array}\right)$ be 2 x 2 matrices such that PQ = 1. Find (u, v) Options:
  A) (-$\frac{5}{2}$ - 1)
  B) (-$\frac{5}{2}$ - $\frac{3}{2}$)
  C) (-$\frac{5}{6}$ - 1)
  D) ($\frac{5}{2}$ - $\frac{3}{2}$)
  Show Answer
  The correct answer is A .