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 291:

  

  In diagram, PQ || ST and < PQR = 120${}^{\circ }$, < RST = 130${}^{\circ }$, find the angle marked x

  Options:
  A) 50
  B) 65
  C) 70
  D) 80
  Show Answer
  The correct answer is C .
• Question 292:

  If $\left|\begin{array}{cc}2& -4\\ x& 9\end{array}\right|=58$, find the value of x.

  Options:
  A) 10
  B) 30
  C) 14
  D) 28
  Show Answer
  The correct answer is A .
• Question 293: A square tile has side 30cm. How many of these tiles will cover a rectangular floor of length 7.2m and width 4.2? Options:
  A) 336
  B) 420
  C) 576
  D) 720
  Show Answer
  The correct answer is A .
• Question 294: A world congress of mathematicians were held in Nice in 1970 with 800 people participating. There were 300 from Europe, 200 from America, 150 from Asia, 45 from Africa and 105 from Australia. Representing the above on a pie chart, the angle of the sector representing the participant is Options:
  A) 150^o
  B) 67$\frac{1}{2}$^o
  C) 67^o
  D) 135^o
  E) 68^o
  Show Answer
  The correct answer is B .
• Question 295:

  A rectangular pyramid has an area 24cm${}^2$ and height 7.5cm. Find its volume?

  Options:
  A) 65.0cm${}^3$
  B) 70.5cm${}^3$
  C) 56.5cm${}^3$
  D) 60.0cm${}^3$
  Show Answer
  The correct answer is D .
• Question 296:

  

  In the figure PT is a tangent to the circle with centre at O. If PQT = 30${}^{\circ }$, find the value of PTO

  Options:
  A) 30${}^{\circ }$
  B) 50${}^{\circ }$
  C) 24${}^{\circ }$
  D) 12${}^{\circ }$
  E) 60${}^{\circ }$
  Show Answer
  The correct answer is B .
• Question 297:

  Factorise(4a + 3) ${}^2$ - (3a - 2)${}^2$

  Options:
  A) (a + 1)(a + 5)
  B) (a - 5)(7a - 1)
  C) (a + 5)(7a + 1)
  D) a(7a + 1)
  Show Answer
  The correct answer is C .
• Question 298: Find the mean of the following 24.57, 25.63, 24.32, 26.01, 25.77 Options:
  A) 25.12
  B) 25.30
  C) 25.26
  D) 25.50
  E) 25.75
  Show Answer
  The correct answer is C .
• Question 299: Find all values of x satisfying the inequality -11 $\le$ 4 - 3x $\le$ 28
  Options:
  A) -5 $\le$ x v 8
  B) 5 $\le$ x $\le$ 8
  C) -8 $\le$ x $\le$ 5
  D) -5 < x $\le$ 8
  Show Answer
  The correct answer is C .
• Question 300: What are the values of y which satisfy the equation gy - 4 x 3^y + 3 = 0? Options:
  A) -1 and 0
  B) -1 and 1
  C) 1 and 3
  D) 0 and 1
  Show Answer
  The correct answer is D .