WAEC - Mathematics (2014)

  • 1
    Simplify 10\(\frac{2}{5} - 6 \frac{2}{3} + 3\)
    Хариулт
    (B)
    6\(\frac{11}{15}\)
  • 2
    If 23x = 325, find the value of x
    Хариулт
    (A)
    7
  • 3
    The volume of a cube is 512cm3. Find the length of its side
    Хариулт
    (C)
    8cm
  • 4

    The bar chart above shows the scores of some students in a test. Use it to answer this question

    If one student is selected at random, find the probability that he/she scored at most 2 marks

    Хариулт
    (B)
    \(\frac{11}{20}\)
  • 5
    Simplify: \(\sqrt{12} ( \sqrt{48} - \sqrt{3}\))
    Хариулт
    (A)
    18
  • 6
    Given that x > y and 3 < y, which of the following is/are true? i. y > 3 ii. x < 3 iii. x > y > 3
    Хариулт
    (C)
    i and iii
  • 7
    Three quarters of a number added to two and a half of the number gives 13. Find the number
    Хариулт
    (A)
    4
  • 8
    If x = {0, 2, 4, 6}, y = {1, 2, 3, 4} and z = {1, 3} are subsets of u = {x:0 \(\geq\) x \(\geq\) 6}, find x \(\cap\) (Y' \(\cup\) Z)
    Хариулт
    (C)
    {0, 6)
  • 9
    Find the truth set of the equation x2 = 3(2x + 9)
    Хариулт
    (D)
    {x : x = -3, x = 9}
  • 10
    The coordinates of points P and Q are (4, 3) and (2, -1) respectively. Find the shortest distance between P and Q.
    Хариулт
    (D)
    2\(sqrt{5}\)
  • 11
    Make u the subject of formula, E = \(\frac{m}{2g}\)(v2 - u2)
    Хариулт
    (A)
    u = \(\sqrt{v^2 - \frac{2Eg}{m}}\)
  • 12
    F x varies inversely as y and y varies directly as Z, what is the relationship between x and z?
    Хариулт
    (B)
    x \(\alpha \frac{1}{z}\)
  • 13
    Find the gradient of the line joining the points (2, -3) and 2, 5)
    Хариулт
    (D)
    undefined
  • 14
    If (x - a) is a factor pf bx - ax + x2, find the other factor.
    Хариулт
    (A)
    (x + b)
  • 15
    \(\begin{array}{c|c}height & 2 & 3 & 4 & 5 & 6 \\ \hline frequency & 2 & 4 & 5 & 3 & 1
    \end{array}\)
    The table shows the distribution of the height of plants in a nursery. Calculate the mean height of the plants.
    Хариулт
    (A)
    3.8
  • 16
    The area of a sector a circle with diameter 12cm is 66cm2. If the sector is folded to form a cone, calculate the radius of the base of the cone [Take \(\pi = \frac{22}{7}\)]
    Хариулт
    (B)
    3.5cm
  • 17
    A chord, 7cm long, is drawn in a circle with radius 3.7cm. Calculate the distance of the chord from the centre of the circle
    Хариулт
    (B)
    1.2cm
  • 18
    Which of the following is a measure of dispersion?
    Хариулт
    (A)
    range
  • 19
    A ship sails x km due east to a point E and continues x km due north to F. Find the bearing the bearing of f from the starting point.
    Хариулт
    (A)
    045o
  • 20
    A box contains 13 currency notes, all of which are either N50 or N20 notes. The total value of the currency notes is N530. How many N50 notes are in the box?
    Хариулт
    (D)
    9
  • 21
    If x : y = 3 : 2 and y : z = 5 : 4, find the value of x in the ratio x : y : z
    Хариулт
    (C)
    15
  • 22
    Given that cos x = \(\frac{12}{13}\), evaluate \(\frac{1 - \tan x}{\tan x}\)
    Хариулт
    (C)
    \(\frac{7}{5}\)
  • 23
    approximate 0.0033780 to 3 significant figures
    Хариулт
    (C)
    0.00338
  • 24
    Simplify \(\sqrt{\frac{8^2 \times 4^{n + 1}}{2^{2n} \times 16}}\)
    Хариулт
    (C)
    4
  • 25
    If \(\frac{2}{x - 3} - \frac{3}{x - 2}\) is equal to \(\frac{p}{(x - 3)(x - 2)}\), find p
    Хариулт
    (D)
    5 - x
  • 26
    Subtract \(\frac{1}{2}\)(a - b - c) from the sum of \(\frac{1}{2}\)(a - b + c) and \(\frac{1}{2}\)
    (a + b - c)
    Хариулт
    (A)
    \(\frac{1}{2}\) (a + b + c)
  • 27
    A man's eye level is 1.7m above the horizontal ground and 13m from a vertical pole. If the pole is 8.3m high, calculate, correct to the nearest degree, the angle of elevation of the top of the pole from his eyes.
    Хариулт
    (C)
    27o
  • 28
    A chord subtends an angle of 120o at the centre of a circle of radius 3.5cm. Find the perimeter of the minor sector containing the chord, [Take \(\pi = \frac{22}{7}\)]
    Хариулт
    (A)
    14\(\frac{1}{3}\)cm
  • 29
    In parallelogram PQRS, QR is produced to M such that |QR| = |RM|. What fraction of the area of PQMS is the area of PRMS?
    Хариулт
    (C)
    \(\frac{2}{3}\)
  • 30
    In a cumulative frequency graph, the lower quartile is 18 years while the 60th percentile is 48 years. What percentage of the distribution is at most 18 years or greater than 48 years?
    Хариулт
    (C)
    65%
  • 31
    If a number is selected at random from each of the sets p = {1, 2, 3} and Q = {2, 3, 5}, find the probability that the sum of the numbers is prime
    Хариулт
    (C)
    \(\frac{1}{3}\)
  • 32
    If log 5.957 = 0.7750, find log \(3 \sqrt{0.0005957}\)
    Хариулт
    (D)
    \(\overline{1}\).075
  • 33
    The probability of an event P happening is \(\frac{1}{5}\) and that of event Q is \(\frac{1}{4}\). If the events are independent, what is the probability that neither of them happens?
    Хариулт
    (C)
    \(\frac{3}{5}\)
  • 34
    Each exterior angle of a polygon is 30o. Calculate the sum of the interior angles
    Хариулт
    (D)
    1800o
  • 35
    Find the number of term in the Arithmetic Progression(A.P) 2, -9, -20,...-141.
    Хариулт
    (D)
    14
  • 36
    In what modulus is it true that 9 + 8 = 5?
    Хариулт
    (C)
    mod 12
  • 37
    The radii of the base of two cylindrical tins, P and Q are r and 2r respectively. If the water level in p is 10cm high, what would be the height of the same quantity of water in Q?
    Хариулт
    (A)
    2.5cm
  • 38
    The bar chart shows the scores of some students in a test. How many students took the test?
    Хариулт
    (C)
    20
  • 39
    The bar chart shows the scores of some students in a test. If one students is selected at random, find the probability that he/she scored at most 2 marks
    Хариулт
    (B)
    \(\frac{11}{20}\)
  • 40
    In the diagram, the value of x + y = 220o. Find the value of n
    Хариулт
    (B)
    40o
  • 41

    In the diagram, PQR is straight line, ( m + n) = 120o and ( n + r) = 100o. Find (m + r).

    Хариулт
    (C)
    140o
  • 42
    In the diagram, PQR is a straight line, (m + n) = 120o and (n + r) = 100o. Find (m + r)
    Хариулт
    (C)
    140o
  • 43
    In the diagram, ST is parallel to UW, < WVT = xo, < VUT = yo, < RSV = 45o and < VTU = 20o. Find the value of x
    Хариулт
    (B)
    45
  • 44
    In the diagram, ST is parallel to UW, < WVT = xo, < VUT = yo, < RSV = 45o and < VTU = 20o. Calculate the value of y
    Хариулт
    (B)
    25
  • 45

    The graph given is for the relation y = 2x\(^2\) + x - 1. What are the coordinates of the point S?

    Хариулт
    (C)
    (1, 2.0)