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 321: If m $\ast$ n = n-(m + 2) for any real numbers m and n, find the value of 3 $\ast$ (-5) Options:
  A) -6
  B) -8
  C) -10
  D) -12
  Show Answer
  The correct answer is C .
• Question 322: The currency used in a country is called 'Matimalik'(M) and is of base seven. A lady in that country bought 4 bags of rice at M56 per bag and and 3 tins of milk at M4 per tin. What is the total cost of the item she bought? Options:
  A) M246₇
  B) M242₇
  C) M236₇
  D) M341₇
  E) M338₇
  Show Answer
  The correct answer is C .
• Question 323: a cylindrical drum of diameter 56 cm contains 123.2 litres of oil when full. Find the height of the drum in centimeters Options:
  A) 12.5
  B) 25.0
  C) 45.0
  D) 50.00
  Show Answer
  The correct answer is D .
• Question 324: The probability that a student passes a physics test is $\frac{2}{3}$. If he takes three physics tests, what is the probability that he passes two of the tests? Options:
  A) $\frac{2}{27}$
  B) $\frac{3}{27}$
  C) $\frac{4}{27}$
  D) $\frac{5}{3}$
  Show Answer
  The correct answer is C .
• Question 325:

  $\begin{array}{ccccc}Weight(s)& 0-10& 10-20& 20-30& 40-50\\ \text{Number of coconuts}& 10& 27& 19& 6& 2\end{array}$

  Estimate the mode of the frequency distribution above.

  Options:
  A) 13.2g
  B) 15.0g
  C) 16.8g
  D) 17.5g
  Show Answer
  The correct answer is C .
• Question 326:

  A cylindrical tank has a capacity of 3080 m³. What is the depth of the tank if the diameter of its base is 14 m?

  (Take pi = 22/7)

  Options:
  A) 23 m
  B) 25 m
  C) 20 m
  D) 22 m
  Show Answer
  The correct answer is C .
• Question 327: Calculate the standard deviation of the following data: 7, 8, 9, 10, 11, 12, 13. Options:
  A) 2
  B) 4
  C) 10
  D) 11
  Show Answer
  The correct answer is A .
• Question 328:

  What is the greatest straight line distance between two vertices (corners) of a cube whose sides are 2239cm long?

  Options:
  A) $\sqrt{2239}$cm
  B) $\sqrt{2}$ x 2239cm
  C) $\frac{\sqrt{3}}{2}$ 2239cm
  D) $\sqrt{3}$ x 2239cm
  E) 4478cm
  Show Answer
  The correct answer is D .
• Question 329: If a metal pipe 10cm long has an external diameter of 12cm and a thickness of 1cm find the volume of the metal used in making the pipe Options:
  A) 120$\pi$cm³
  B) 110$\pi$cm³
  C) 60$\pi$cm³
  D) 50$\pi$cm³
  Show Answer
  The correct answer is B .
• Question 330:

  

  From the figure above, what is the value of p?

  Options:
  A) 135${}^{\circ }$
  B) 90${}^{\circ }$
  C) 60${}^{\circ }$
  D) 45${}^{\circ }$
  Show Answer
  The correct answer is B .