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 1581: Without using table, solve the equation 8x^-2 = $\frac{2}{25}$ Options:
  A) 4
  B) 6
  C) 8
  D) 10
  Show Answer
  The correct answer is D .
• Question 1582:
  

  How many students scored at least25%

  Options:
  A) 16
  B) 19
  C) 3
  D) 8
  Show Answer
  The correct answer is A .
• Question 1583: If y = 3 sin(-4x), dy/dx is Options:
  A) 12x cos (4x)
  B) -12x cos (-4x)
  C) -12 cos (-4x)
  D) 12 sin (-4x)
  Show Answer
  The correct answer is C .
• Question 1584: A trader in country where their currency 'MONI'(M) is in base five bought 103₅ oranges at M14₅ each. If he sold the oranges at M24₅ each, what will be his gain? Options:
  A) 103₅
  B) 1030₅
  C) 102₅
  D) 2002₅
  E) 3032₅
  Show Answer
  The correct answer is B .
• Question 1585: Find y, if $\left(\begin{array}{cc}5& -6\\ 2& -7\end{array}\right)\left(\begin{array}{c}5\\ 2\end{array}\right)=\left(\begin{array}{c}7\\ -11\end{array}\right)$ Options:
  A) 8
  B) 5
  C) 3
  D) 2
  Show Answer
  The correct answer is C .
• Question 1586: Simplify $\frac{a-b}{a+b}$ - $\frac{a+b}{a-b}$ Options:
  A) $\frac{4ab}{a-b}$
  B) $\frac{-4ab}{a^2-b^2}$
  C) $\frac{-4ab}{a^{-2}-b}$
  D) $\frac{4ab}{a^{-2}-b^{-2}}$
  Show Answer
  The correct answer is B .
• Question 1587:

  The locus of a point which moves so that it is equidistant from two intersecting straight lines is the?

  Options:
  A) perpendicular bisector of the two lines
  B) angle bisector of the two lines
  C) bisector of the two lines
  D) line parallel to the two lines
  Show Answer
  The correct answer is B .
• Question 1588: ($\sqrt{2}+4\sqrt{2}$) ($\sqrt{3}+\sqrt{2}$) ($\sqrt{3}+\sqrt{2}$) 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 1589: Evaluate 1011²₂ - 101²₂ Options:
  A) 110000₂
  B) 110₂
  C) 1100000₂
  D) 11000₂
  Show Answer
  The correct answer is C .
• Question 1590: A binary operation $\oplus$ is defines on the set of all positive integers by a $\oplus$ b = ab for all positive integers a, b. Which of the following properties does NOT hold? Options:
  A) closure
  B) identity
  C) positive
  D) inverse
  Show Answer
  The correct answer is D .