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 1001: 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 1002: Twenty girls and y boys sat on an examination. The mean marks obtained by the girls and boys were 52 and 57 respectively. if the total score for both girls and boys was 2950, find y. Options:
  A) 51
  B) 48
  C) 30
  D) 25
  E) 18
  Show Answer
  The correct answer is C .
• Question 1003: The radius r of a circular disc is increasing at the rate of 0.5cm/sec. At what rate is the area of the disc increasing when its radius is 6cm? Options:
  A) 36 π cm²/sec
  B) 18 π cm²/sec
  C) 6 π cm²/sec
  D) 3 π cm²/sec
  Show Answer
  The correct answer is C .
• Question 1004: A chord of a circle subtends an angle of 12o degrees at the centre of a circle of diameter 4√3 cm. Calculate the area of the major sector. Options:
  A) 4π cm²
  B) 32 π cm²
  C) 16 π cm²
  D) 8 π cm²
  Show Answer
  The correct answer is D .
• Question 1005:

  Find the value of x for $\frac{2+2x}{3}-2\ge \frac{4x-6}{5}$

  Options:
  A) x $\ge$ -5
  B) x $\ge$ -1
  C) x $\le$ -1
  D) x $\le$ 3
  Show Answer
  The correct answer is C .
• Question 1006:

  $\begin{array}{cccc}\text{Class Interval}& 3-5& 6-8& 9-11\\ \text{Frequency}& 2& 2& 2\end{array}$.

  Find the standard deviation of the above distribution.

  Options:
  A) √5
  B) √6
  C) √7
  D) √2
  Show Answer
  The correct answer is B .
• Question 1007: From a point P, the bearings of two points Q and R are N67⁰W and N23⁰E respectively. If the bearing of R from Q is N68⁰E and PQ = 150m, calculate PR Options:
  A) 120m
  B) 140m
  C) 150m
  D) 160m
  Show Answer
  The correct answer is C .
• Question 1008:

  

  In the diagram, POS and ROT are straight lines, OPQR is a parallelogram. |OS| = |OT| and ∠OST = 50^o. Calculate ∠OPQ.

  Options:
  A) 160^o
  B) 140^o
  C) 120^o
  D) 100^o
  Show Answer
  The correct answer is D .
• Question 1009:

  The probability of an outcome A is 1/6. The probability of the B outcome is 1/4. If the probability of A or B or both is 1/12, what is the probability of both outcomes A and B?

  Options:
  A) 1/2
  B) 1/3
  C) 2/5
  D) 3/4
  Show Answer
  The correct answer is B .
• Question 1010:

  Find the area and perimeter of a square whose length of diagonals is 20$\sqrt{2}$ cm.

  Options:
  A) 800 cm${}^2$, 80 cm
  B) 400 cm, 80 cm${}^2$
  C) 80 cm, 800 cm${}^2$
  D) 400 cm${}^2$, 80 cm
  Show Answer
  The correct answer is D .