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 1341: A hollow right prism of equilateral triangular base of side 4cm is filled with water up to a certain height. If a sphere of radius $\frac{1}{2}$cm is immersed in the water, then the rise of water is Options:
  A) 1cm
  B) $\sqrt{\frac{3\pi }{24}}$
  C) $\frac{\pi }{24\sqrt{3}}$
  D) 24$\sqrt{3}$
  Show Answer
  The correct answer is C .
• Question 1342: A chord of a circle of a diameter 42cm subtends an angle of 60^o at the centre of the circle. Find the length of the mirror arc Options:
  A) 22cm
  B) 44cm
  C) 110cm
  D) 220cm
  Show Answer
  The correct answer is A .
• Question 1343:
  

  From the diagram above, find the required roots/region of x.

  Options:
  A) x$\le$-1, x $\ge$4
  B) x$\le$4
  C) -1$\le$x$\le$4
  D) x$\le$-1, o$\le$x$\le$4
  Show Answer
  The correct answer is C .
• Question 1344:

  A man's initial salary is ₦540.00 a month and increases after each period of six months by ₦36.00 a month. Find his salary in the eight month of the third year.

  Options:
  A) ₦828.00
  B) ₦756.00
  C) ₦720.00
  D) ₦684.00
  Show Answer
  The correct answer is C .
• Question 1345:

  If M varies directly as N and inversely as the root of P. Given that M = 3, N = 5 and P = 25. Find the value of P when M = 2 and N = 6.

  Options:
  A) 36
  B) 63
  C) 47
  D) 81
  Show Answer
  The correct answer is D .
• Question 1346:

  The cumulative frequency function of the data below is given below by the equation y = cf(x). What is cf(5)?

  $\begin{array}{cc}Score(n)& Frequency(f)\\ 3& 30\\ 4& 32\\ 5& 30\\ 6& 35\\ 8& 20\end{array}$

  Options:
  A) 30
  B) 32
  C) 55
  D) 62
  E) 92
  Show Answer
  The correct answer is E .
• Question 1347: Find the values of p for which the equation x² - (p - 2)x + 2p + 1 = 0 Options:
  A) (21, 0)
  B) (0, 12)
  C) (1, 2)
  D) (3, 4)
  E) (4, 5)
  Show Answer
  The correct answer is B .
• Question 1348: If 3 gallons of spirit containing 20% water are added to 5 gallons of another spirit containing 15% water, what percentage of the mixture is water? Options:
  A) 2$\frac{4}{5}$%
  B) 16$\frac{7}{8}$%
  C) 18$\frac{1}{8}$%
  D) 18$\frac{7}{8}$%
  Show Answer
  The correct answer is B .
• Question 1349:

  

  From the diagram given, find the bearing of R from S

  Options:
  A) 226${}^{\circ }$
  B) 224${}^{\circ }$
  C) 136${}^{\circ }$
  D) 134${}^{\circ }$
  Show Answer
  The correct answer is B .
• Question 1350:

  

  The pie chart above represents 400 fruits on display n a grocery store. How many apples are in the store

  Options:
  A) 45
  B) 50
  C) 60
  D) 75
  Show Answer
  The correct answer is B .