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 1671: Integral ∫$(5x^3+7x^2-2x+5)$dx Options:
  A) $\frac{5x^4}{4}+\frac{7x^3}{3}+2x+C$
  B) $\frac{5x}{4}+\frac{7x^3}{3}-x^2+5x+C$
  C) $\frac{5x^3}{3}+\frac{7x^2}{x}-x+C$
  D) $\frac{2x^2}{3}+\frac{x}{5}-C$
  Show Answer
  The correct answer is B .
• Question 1672: One interior angle of a convex hexagon is 170^o and each of the remaining interior angles is equal to x^o. Find x Options:
  A) 120^o
  B) 110^o
  C) 105^o
  D) 102^o
  E) 100^o
  Show Answer
  The correct answer is B .
• Question 1673: Find the nth term of the sequence 3, 6, 10, 15, 21..... Options:
  A) $\frac{n(n-1)}{2}$
  B) $\frac{n(n+1)}{2}$
  C) $\frac{(n+1)(n+2)}{2}$
  D) n(2n + 1)
  Show Answer
  The correct answer is C .
• Question 1674: Make $\frac{a}{x}$ the subject of formula $\frac{x+1}{x-a}$ Options:
  A) $\frac{m-1}{m+1}$
  B) $\frac{m+1}{1-m}$
  C) $\frac{m-1}{1+m}$
  D) $\frac{m+1}{m-1}$
  Show Answer
  The correct answer is A .
• Question 1675:

  

  From the cyclic quadrilateral MNOP above, find the value of x.

  Options:
  A) 16°
  B) 25°
  C) 42°
  D) 39°
  Show Answer
  The correct answer is D .
• Question 1676: Find the values of x which satisfy the equation 16^x - 5 x 4^x + 4 = 0 Options:
  A) 1 and 4
  B) -2 and 2
  C) 0 and 1
  D) -1 and 0
  Show Answer
  The correct answer is C .
• Question 1677: Reduce each number to two significant figures and then evaluate $\frac{0.021741\times 1.2047}{0.023789}$ Options:
  A) 0.8
  B) 0.9
  C) 1.1
  D) 1.2
  Show Answer
  The correct answer is C .
• Question 1678: Differentiate $\frac{6x^3-5x^2+1}{3x^2}$ with respect to x Options:
  A) $\frac{2+2}{3x^3}$
  B) 2 + $\frac{1}{6x}$
  C) 2 - $\frac{2}{3x^3}$
  D) $\frac{1}{5}$
  Show Answer
  The correct answer is C .
• Question 1679: Simplify $\frac{x^2-1}{x^3+2x^2-x-2}$ Options:
  A) $\frac{1}{x+2}$
  B) $\frac{x-1}{x+1}$
  C) $\frac{x-1}{x+2}$
  D) $\frac{1}{x-2}$
  Show Answer
  The correct answer is A .
• Question 1680:

  A man invested a total of ₦50000 in two companies. If these companies pay dividends of 6% and 8% respectively, how much did he invest at 8% if the total yield is ₦3700?

  Options:
  A) ₦15000
  B) ₦29600
  C) ₦27800
  D) ₦21400
  E) ₦35000
  Show Answer
  The correct answer is E .