WAEC - Mathematics (1996)

  • 1
    The 6th term of a G.P is \(\frac{-2}{27}\) and its first term is 18. What is the common ratio?
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    (B)
    -1/3
  • 2
    Convert the decimal number 89 to a binary number
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    (E)
    1011001
  • 3
    Simplify: \((2\frac{1}{6} - 1\frac{2}{3}) \div 2\frac{2}{3}\).
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    (A)
    3/16
  • 4
    Simplify 56x\(^{-4}\) \(\div\) 14x\(^{-8}\)
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    (E)
    4x4
  • 5
    Simplufy Log104 + Log1025
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    (B)
    2
  • 6
    A boy measured the length and breath of a rectangular lawn as 59.6m and 40.3m respectively instead of 60m and 40m. What is the percentage error in his calculation of the perimeter of the lawn?
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    (E)
    0.1%
  • 7
    Find the 9th term of the arithmetic progression 18, 12, 6, 0, -6 .........
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    (B)
    -30
  • 8
    Expand (2x - 5)(x - 3)
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    (B)
    2x2 - 11x + 15
  • 9
    Simplify: \(\frac{5}{x - y} - \frac{4}{y - x}\)
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    (A)
    9/x - y
  • 10
    If 3p - q = 6 and 2p + 3q = 4, find q
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    (A)
    o
  • 11
    M varies directly as n and inversely as the square of p. If M = 3, when n = 2 and p = 1, find M in terms of n and p.
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    (D)
    M = 3n/2p2
  • 12
    If x is a real number which of the following is more illustrated on the number line?
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    (E)
    -2 ≤ x < 4
  • 13
    Solve the equation
    4/a
    +
    1/5a
    = 3
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    (B)
    12/5
  • 14
    Make p the subject if formula y =
    a + p/a - p
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    (C)
    a(y -1)/y + 1
    = p
  • 15
    Factorize 32x3 - 8xy2
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    (D)
    8x(2x + y)(2x - y)
  • 16
    The roots of a quadratic equation are -1/4 and 3. The quadratic equation is
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    (B)
    4x2 - 11x - 3 = 0
  • 17
    The graph of 2y = 5x2 - 3x2 - 2 cuts the y axis at the point
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    (C)
    (0, -1)
  • 18

    In the diagram above, O is the center of the circle of radius 3.5cm, ∠POQ = 60o

     

    Use the information to answer the question below [Take π = 22/7]


    What is the length of the arc PXQ?

     

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    (C)
    \(\frac{11}{3}\)cm
  • 19

    In the diagram above, O is the center of the circle of radius 3.5cm, ∠POQ = 60°. What is the area of the minor sector POQ?

    [Take π = 22/7].

     

     

     

     

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    (D)
    65/12cm2
  • 20
    If the hypotenuse of a right-angle isosceles triangle is 2, what is the length of each of the other side?
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    (D)
    √2
  • 21
    Find, correct to 1 decimal place, the volume of cylinder of height 8cm and base radius 3cm. [Take π = 3.142]
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    (D)
    226.2cm3
  • 22
    One side of a rectangle is 8cm and the diagonal is 10cm. What is the area of the rectangle?
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    (B)
    48cm2
  • 23
    two towns X and Y both on latitude 60oS have longitude 27oE and 33oW respectively. Find to the nearest kilometers, the distance between X and Y measured along the parallel of latitude. [Take 2πR = 4 x 104km, where R is the Radius of the earth]
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    (E)
    3333km
  • 24
    The angle of a sector of a circle of radius 35cm is 288o. Find the perimeter of the sector. [Take π = 22/7]
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    (A)
    246cm
  • 25
    How many sides has a polygon if the sum of its interior angle is 1440o?
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    (E)
    10
  • 26
    Each interior angle of a regular nonagon(nine sided polygon) is equal to
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    (C)
    140o
  • 27

    In the diagram above, find x correct to the nearest degree

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    (C)
    26o
  • 28

    In the diagram above, TRQ is a straight line. Find p, if p = \(\frac{1}{3}\)(a + b + c)

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    (A)
    45o
  • 29
    Which of the following is not true? You may construct a
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    (D)
    quatrilateral given all the four sides
  • 30

    In the diagram above, PQ is parallel to RST. /RS/ = /SQ/ = /TQ/ and ∠PQR = 35o.Calculate ∠SQT

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    (C)
    40o
  • 31
    In the diagram above, /PQ/ = /PS/ and /QR/ = /SR/. Which of the following is/are true? i. the line PR bisects ∠QRS ii. The line PR is the perpendicular bisector of the line segment QS iii. Every point on PR is equidistant from SP and QP
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    (E)
    I, II and III
  • 32

    In the diagram, ∠PMN = ∠PRQ and ∠PNM = ∠PQR. If /Pm/ = 3cm, /MQ/ = 7cm and /PN/ = 5cm, find /NR/

     

     

     

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    (A)
    1cm
  • 33
    In the diagram above, PQ is a tangent to the circle MTN at T. What is the size of ∠MTN?
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    (C)
    66o
  • 34
    In the diagram above, KLMN is a cyclic quadrilateral. /KL/ = /KN/, ∠NKM = 55o and ∠KML = 40o. Find ∠LKM
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    (C)
    45o
  • 35
    In the diagram above, ∠SPQ = 79o. Find ∠SRQ
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    (E)
    101o
  • 36
    Two angles (a + 31) and (b - 49o) are adjacent angles on a straight line. Which of the following is true
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    (A)
    a + b = 198o
  • 37
    The trapezium PQRS parallel to SR,∠PQS = 34o and ∠SPQ = 2 ∠SRQ. Find the size of, SQR
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    (D)
    90o
  • 38
    In the diagram above, AB, CD and XY are straight lines intersecting at W. Find ∠CWX
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    (B)
    80o
  • 39
    If sin\(\theta\) cos\(\theta\), for 0o \(\leq\) θ \(\leq\) 360o, find the value of \(\theta\)
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    (A)
    45o, 225o
  • 40
    If tan x = \(2\frac{2}{5}\), find the value of sin x; 0 \(\leq\) x \(\leq\) 90o
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    (D)
    12/13
  • 41
    A town P is 150km from a town Q in the direction 050o. What is the bearing of Q from P?
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    (C)
    230o
  • 42
    The angle of elevation of the top X of a vertical pole from a point P on a level ground is 60o. The distance from P to the foot of the pole is 55m. Without using tables, find the height of the pole.
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    (C)
    55√3m
  • 43

    The number of goals scored by a football team in 20 matches is shown in the table above


    What is the mean goal scored?

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    (B)
    1.75
  • 44

    The number of goals scored by a football team in 20 matches is shown in the table above


    What is the modal goal scored?
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    (C)
    2
  • 45
    The cumulative frequency curve may be used to find the
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    (D)
    median