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 2281: If X = {n² + 1:n = 0,2,3} and Y = {n+1:n=2,3,5}, find X∩Y. Options:
  A) {1,3}
  B) {5,10}
  C) ∅
  D) {4,6}
  Show Answer
  The correct answer is C .
• Question 2282: Calculate the area of a parallelogram whose diagonals are of length 8cm and 12cm and intersect at an angle of 135° Options:
  A) 271.5cm²
  B) 135.8cm²
  C) 96.0cm²
  D) 48.0cm²
  E) 33.9cm²
  Show Answer
  The correct answer is E .
• Question 2283: U is inversely proportional to the cube of V and U = 81 when V = 2. Find U when V = 3 Options:
  A) 24
  B) 27
  C) 32
  D) 36
  Show Answer
  The correct answer is A .
• Question 2284: A sales boy gave a change of N75.00 to a buyer instead of N80.00, calculate his percentage error, correct to one decimal place? Options:
  A) 6.00%
  B) 6.20%
  C) 6.30%
  D) 6.60%
  E) 6.70%
  Show Answer
  The correct answer is C .
• Question 2285: The parallel sides of a trapezium are 13cm and 7cm. If the area of the trapezium is 50cm2, find the perpendicular distance between the parallel sides. Options:
  A) 5cm
  B) 6cm
  C) 7cm
  D) 10cm
  E) 12cm
  Show Answer
  The correct answer is A .
• Question 2286: 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 2287: The nth term of a sequence is given 3^{1 - n} , find the sum of the first terms of the sequence. Options:
  A) $\frac{13}{9}$
  B) 1
  C) $\frac{1}{3}$
  D) $\frac{1}{9}$
  Show Answer
  The correct answer is A .
• Question 2288: If x³ - 12x - 16 = 0 has x = -2 as a solution then the equaion has Options:
  A) x = -4 as a solution also
  B) 3 roots all different
  C) 3 roots with two equal and the third different
  D) 3 roots all equal
  E) only one root
  Show Answer
  The correct answer is B .
• Question 2289: Which of the following fractions is less than one-third? Options:
  A) $\frac{22}{63}$
  B) $\frac{4}{11}$
  C) $\frac{15}{46}$
  D) $\frac{33}{98}$
  E) $\frac{122}{303}$
  Show Answer
  The correct answer is C .
• Question 2290:

  Rationalize $\frac{\sqrt{2}+\sqrt{3}}{\sqrt{2}-\sqrt{3}}$

  Options:
  A) $-5-2\sqrt{6}$
  B) $-5+3\sqrt{2}$
  C) $5-2\sqrt{3}$
  D) $5+2\sqrt{6}$
  Show Answer
  The correct answer is A .