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 2081:

  I.S∩T∩W=S II. S∪T∪W=S

  III. T∩W=S

  If S⊂T⊂W, which of the above statements are true?

  Options:
  A) I and II
  B) I and III
  C) II and III
  D) I, II and III
  Show Answer
  The correct answer is D .
• Question 2082: Two ladders of length 5m and 7m lean against a pole and make angles 45° and 60° with the ground respectively. What is their distance apart on the pole correct to two decimal places? Options:
  A) 9.60m
  B) 6.06m
  C) 2.54m
  D) 2.53m
  E) 2.00m
  Show Answer
  The correct answer is D .
• Question 2083: If tan $\theta$ = $\frac{m^2-n^2}{2mn}$ find sec$\theta$ Options:
  A) $\frac{m^2+n^2}{(m^2-n^2)}$
  B) $\frac{m^2+n^2}{2mn}$
  C) $\frac{mn}{2(m^2+n^2)}$
  D) $\frac{m^2{n}^2}{2(m^2-n^2)}$
  Show Answer
  The correct answer is B .
• Question 2084: Simplify the given expression $\sqrt{\frac{1-cosx}{1+cosx}}$ Options:
  A) $\frac{1-cosx}{sinx}$
  B) 1 - cos x
  C) sin x
  D) 1 + cos x
  E) $\frac{1+cosx}{sinx}$
  Show Answer
  The correct answer is A .
• Question 2085: If an investor invest ₦450,000 in a certain organization in order to yield X as a return of ₦25,000. Find the return on an investment of ₦700,000 by Y in the same organization. Options:
  A) ₦14,950.50K
  B) ₦25,150.30K
  C) ₦15,000.00K
  D) ₦38,888.90K
  Show Answer
  The correct answer is D .
• Question 2086: If r varies inversely as the square root of s and t, how does s vary with r and t? Options:
  A) s varies inversely as r and t²
  B) s varies inverely as r² and t
  C) s varies directly as r² and t²
  D) s varies directly as r and t
  Show Answer
  The correct answer is B .
• Question 2087: Multiply (x² - 3x + 1) by (x - a) Options:
  A) x³ - (3 + a) x² + (1 + 3a)x - a
  B) x³ - (3 - a)x² + 3ax - a
  C) x³ - (3 - a)x² - (1 = 3a) - a
  D) x³ + (3 - a)x² + (1 + 3a) - a
  Show Answer
  The correct answer is A .
• Question 2088: If the interest on N150.00 for 2¹/₂ years is N4.50, find the interest on N250.00 for 6 months at the same rate Options:
  A) N1.50
  B) N7.50
  C) N15.00
  D) N18.00
  Show Answer
  The correct answer is A .
• Question 2089: The probability of a student passing any examination is $\frac{2}{3}$. If the student takes three examinations, what is the probability that he will not pass any of them? Options:
  A) $\frac{2}{3}$
  B) $\frac{4}{9}$
  C) $\frac{8}{27}$
  D) $\frac{1}{27}$
  Show Answer
  The correct answer is D .
• Question 2090: If log₅20 = x, find x Options:
  A) 1.761
  B) 1.354
  C) 1.861
  D) 2.549
  Show Answer
  The correct answer is C .