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 1311:

  

  The equation of the graph is

  Options:
  A) y = (x - 3)³
  B) y = (x + 3)³
  C) y = x³ - 27
  D) y = -x³ + 27
  Show Answer
  The correct answer is C .
• Question 1312: The diameter of a metal rod is measured as 23.40cm to four significant figures. What is the maximum error in the measurement?
  Options:
  A) 0.05cm
  B) 0.5cm
  C) 0.045cm
  D) 0.005cm
  E) 0.004cm
  Show Answer
  The correct answer is D .
• Question 1313: A cone with the sector angle of 45^o is cut out of a circle of radius of the cone. Options:
  A) $\frac{r}{16}$ cm
  B) $\frac{r}{6}$ cm
  C) $\frac{r}{8}$ cm
  D) $\frac{r}{2}$ cm
  Show Answer
  The correct answer is C .
• Question 1314: If x varies directly as y³ and x = 2 when y = 1, find x when y = 5 Options:
  A) 2
  B) 10
  C) 125
  D) 250
  Show Answer
  The correct answer is D .
• Question 1315:

  

  In the figure, WU//YZ, WY//YZ = 12cm, VZ = 6cm, XU = 8cm. Determine the length of WU.

  Options:
  A) 1cm
  B) 6cm
  C) 2cm
  D) 4cm
  E) 3cm
  Show Answer
  The correct answer is D .
• Question 1316: Factorize 6^{2x + 1} + 7(6^x) - 5 Options:
  A) [3(6^x) - 5][2(6^x)m + 1]
  B) [3(6^x) + 5][2(6^x) - 1]
  C) [(6^x) - 5][3(6^x) + 1]
  D) [2(6^x) + 5][3(6^x) - 1]
  Show Answer
  The correct answer is B .
• Question 1317: If x₁₀ = 1214₅ find x Options:
  A) 124
  B) 121
  C) 184
  D) 180
  Show Answer
  The correct answer is C .
• Question 1318:

  

  In the figure, PQST is a parallelogram and TSR is a straight line. If the area of $△$QRS is 20cm², find the area of the trapezium PQRT.

  Options:
  A) 35cm²
  B) 65cm²
  C) 70cm²
  D) 140cm²
  Show Answer
  The correct answer is C .
• Question 1319: ($\sqrt{2}+4\sqrt{2}$) ($\sqrt{3}+\sqrt{2}$) ($\sqrt{3}+\sqrt{2}$) is equal to Options:
  A) 1
  B) ($\sqrt{2}+4\sqrt{2}$)
  C) (6$\sqrt{2}$
  D) 8
  Show Answer
  The correct answer is A .
• Question 1320: 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 .