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The length of an exercise book is given as 20cm correct to the nearest centimeter. In which of the following ranges of possible measurement does the actual length lie?
A19.5 - 20.4cm
B19.1 - 20.9cm
C19.9 - 20.1cm
D19.95 - 20.05cm
E19 - 21cm
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Question 2
waec1994
Find the probability that a number selected from the number 30 to 50 inclusive is a prime
A1/4
B5/21
C2/7
D3/10
E1/3
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Question 3
waec1994
Two cards are drawn one after the other with replacement from a well-shuffled ordinary deck of 52 cards containing four Aces. Find the probability that they are both Aces
A1/221
B1/169
C1/52
D1/26
E1/13
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Question 4
waec1994
The mean heights of the three groups of students consisting of 20, 16 and 14 students are 1.67m, 1.50m and 1.40m respectively. Find the mean height of the students
A1.52m
B1.53m
C1.54m
D1.55m
E1.56m
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Question 5
waec1994
The percentage of the students with mass less than 69kg is
A56%
B62.5%
C68%
D70%
E87.5%
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Question 6
waec1994
The median of the distribution is
A9.5kg
B11kg
C67kg
D65.5kg
E68kg
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Question 7
waec1994
cos 57o has the same value as
Asin 213o
B-cos 303o
Csin 147o
Dcos 123o
Ecos237o
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Question 8
waec1994
The bearing of Q from P is 122o, what is the bearing of P from Q?
A212o
B238o
C248o
D292o
E302o
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Question 9
waec1994
A ladder 6m long leans against a vertical wall so that it makes an angle of 60o with the wall. Calculate the distance of the foot of the ladder from the wall
A3m
B6m
C2√3m
D3√3m
E6√3m
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Question 10
waec1994
In the diagram, |PS| is a diameter of circle PQRS. |PQ| = |QR| and ∠RSP = 74º. Find ∠QPS
A32o
B37o
C48o
D53o
E74o
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Question 11
waec1994
The diagram above shows a circle PQRS in which ∠PRQ = 54o and ∠SPQ = 97o. Find ∠PQS
A61o
B51o
C43o
D39o
E29o
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Question 12
waec1994
In the diagram above, PQ is the tangent to the circle RST at T.|ST| = ST and ∠RTQ = 68o. Find ∠PTS
A68o
B62o
C61o
D56o
E34o
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Question 13
waec1994
Which of the following is not a property of all parallelogram?
Athe diagonal bisects each other
BEach diagonal bisects the area
Cthe diagonal cut at right angles
DThe opposite sides are equal
EThe opposite angles are equal
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Question 14
waec1994
The sum of the angles of regular polygon is 2520o. How many sides does the polygon have?
A20
B18
C17
D16
E15
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Question 15
waec1994
IF the exterior angles of a quadilateral are yo, (2y + 5)o , (y + 15)o and (3y - 10)o, find yo
A61.43
B60
C52.86
D51.43
E50
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Question 16
waec1994
In the diagram, PQ||RS and angles are as shown. Find x
A145o
B150o
C155o
D160o
E165o
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Question 17
waec1994
In the diagram ST and QR are parallel. |PS| = 6cm, |SQ| = 8cm and |PR] = 18 2/3. Find |PT|
A7cm
B8cm
C8 2/3cm
D10cm
E10 2/3cm
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Question 18
waec1994
Two solid spheres have volumes 250cmo and 128cmo respectively. Find the ratio of their radii.
A125:64
B25:16
C2:1
D4:3
E5:4
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Question 19
waec1994
In the diagram, PQRS is a trapezium with PQ||SR. STR is a straight line, PSHQT, PTHQR. If |PQ| = 12cm and the height of the trapezium is 9cm, find its area.
A96cm2
B108cm2
C135cm2
D162cm2
E216cm2
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Question 20
waec1994
A circle has radius x cm. What is the area of a sector of the circle with angle 135°, leaving the answer in terms of x and π?
