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 291: Find the curved surface area of a cone with circular base diameter 10 cm and height 12 cm Options:
  A) 25 πcm²
  B) 65 πcm²
  C) 120 πcm²
  D) 156 πcm²
  Show Answer
  The correct answer is B .
• Question 292:

  If X, Y can take values from the set (1, 2, 3 ,4), find the probability that the product of X and Y is not greater than 6.

  Options:
  A) $\frac{5}{8}$
  B) $\frac{5}{16}$
  C) $\frac{1}{2}$
  D) $\frac{3}{8}$
  Show Answer
  The correct answer is D .
• Question 293: Given that ³√4^2x = 16, find the value of x Options:
  A) 4
  B) 6
  C) 3
  D) 2
  Show Answer
  The correct answer is C .
• Question 294: Find the standard deviation of the numbers 6, 9, 10, 8 and 7 Options:
  A) 1.4
  B) 2
  C) 2.4
  D) 5
  E) 8
  Show Answer
  The correct answer is A .
• Question 295: If two fair coins are tossed, what is the probability of getting at least one head? Options:
  A) $\frac{1}{4}$
  B) $\frac{1}{2}$
  C) 1
  D) $\frac{43}{78}$
  E) $\frac{3}{4}$
  Show Answer
  The correct answer is E .
• Question 296: If x and y represent the mean and the median respectively of the following set of numbers 11, 12, 13, 14, 15, 16, 17, 18, 19, 21, find the $\frac{x}{y}$ correct to one decimal place Options:
  A) 18
  B) 15
  C) 1.0
  D) 5
  Show Answer
  The correct answer is C .
• Question 297:

  $\begin{array}{ccccccc}\text{No}& 0& 1& 2& 3& 4& 5\\ \text{Frequency}& 1& 4& 3& 8& 2& 5\end{array}$.

  From the table above, find the median and range of the data respectively.

  Options:
  A) (8,5)
  B) (3, 5)
  C) (5 , 8)
  D) (5 , 3)
  Show Answer
  The correct answer is B .
• Question 298:

  Evaluate: 16${}^{0.16}$ × 16${}^{0.04}$ × 2${}^{0.2}$

  Options:
  A) 2
  B) 0
  C) 2${}^0$
  D) $\frac{1}{2}$
  Show Answer
  The correct answer is A .
• Question 299:

  X and Y are two sets such that nX = 15, nY = 12 and n{X ∩ Y} = 7. Find n{X ∪ Y}.

  Options:
  A) 21
  B) 225
  C) 15
  D) 20
  Show Answer
  The correct answer is D .
• Question 300:

  

  In the parallelogram PQRS above, find angle SQR

  Options:
  A) 100${}^{\circ }$
  B) 80${}^{\circ }$
  C) 50${}^{\circ }$
  D) 30${}^{\circ }$
  Show Answer
  The correct answer is A .