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PQR is an equilateral triangle with sides 2\(\sqrt{3cm}\). calculate its height
A1.7cm
B3.0cm
C3.2cm
D3.9cm
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Question 12
waec2007
At what rate per cent per annum will N520.00 yield a simple interest of N39.00 in three years?
A4%
B3\(\frac{1}{2}\)%
C3%
D2\(\frac{1}{2}\)%
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Question 13
waec2007
A messenger was paid N2.50 an hour during the normal working hours and 4.00 n hour during overtime. If he received N31.00 for 10 hours work, how many hours are for overtime?
A2
B3
C4
D6
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Question 14
waec2007
Find the value of a if log\(_{10}\) a + log\(_{10}\)a\(^2\) = 0.9030
A4.0
B2.0
C1.6
D0.0
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Question 15
waec2007
The bearing of a point P from another point Q is 310o. If |PQ| = 200m, how far west of Q is P?
A128.6m
B153.2m
C167.8m
D187.9m
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Question 16
waec2007
Q is 32 km away from P on a bearing 042o and R is 25km from P on a bearing of 132o. Calculate the bearing of R from Q.
A122o
B184o
C190o
D226o
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Question 17
waec2007
Divide the sum of 8, 6, 7, 2, 0, 4, 7, 2, 3, by their mean
A9
B8
C7
D6
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Question 18
waec2007
The table shows the ages(in years) of twenty children chosen at random from a community. What is the median of the distribution? \(\begin{array}{c|c} Age(years) & 1 & 2 & 3 & 4 & 5 \\ \hline {\text {Number of children}} & 2 & 3 & 5 & 6 & 4 \end{array}\)
A3.5 years
B3.0 years
C2.5 years
D2.0 years
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Question 19
waec2007
The table shows the ages(in years) of twenty children chosen at random from a community. What is the mean age? \(\begin{array}{c|c} Age(years) & 1 & 2 & 3 & 4 & 5 \\ \hline {\text {Number of children}} & 2 & 3 & 5 & 6 & 4 \end{array}\)
A4.46 years
B3.35 years
C3.30years
D3.00 years
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Question 20
waec2007
If the probability of an event occurring is x, what is the probability of the event not occurring?
A1 - x
Bx - 1
C0
D\(\frac{1}{x}\)
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Question 21
waec2007
The table above gives the distribution of the marks of a number of students in a test.
\(\begin{array}{c|c} Mark &1 & 2 & 3 & 4 & 5 & 6 \\ \hline Frequency & 5 & 3 & 6 & 4 & 2 & 5\end{array}\), find the mode of the distribution.
A2
B3
C5
D6
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Question 22
waec2007
In a , < PQR = < PRQ = 45o. which of the following statements is/are correct? i. \(\bigtriangleup\)PQR is an equalateral triangle ii. \(\bigtriangleup\)PQR is an isosceles triangle iii. \(\bigtriangleup\)PQR is a right-angled triangle
Aii only
Bi and ii only
Cii and iii only
Di and ii only
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Question 23
waec2007
Each of the interior angle of a regular polygon is 162o. How many sides has the polygon?
A8
B12
C16
D20
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Question 24
waec2007
Find the volume of a solid cylinder with base radius 10cm and height 14cm.
A2203
B880cm3>
C1400cm3
D4400cm3
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Question 25
waec2007
A sector of a circle of radius 14cm containing an angle 60o is folded to form a cone. Calculate the radius of the base of the cone
A5\(\frac{1}{2}cm\)
B4\(\frac{2}{3}cm\)
C3\(\frac{1}{2}cm\)
D2\(\frac{1}{3}cm\)
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Question 26
waec2007
The area of a square field is 110.25m2. Find the cost of fencing it round at N75.00 per metre
AN1,575.00
BN3,150.00
CN4,734.30
DN8,268.75
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Question 27
waec2007
A chord of length 6cm is drawn in a circle of radius 5cm. Find the distance of the chord from the centre of the circle.
A2.5cm
B3.0cm
C3.5cm
D4.0cm
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Question 28
waec2007
If 8x-1 = \(\frac{1}{4}\), find x
A-\(\frac{-5}{3}\)
B-1
C-\(\frac{1}{3}\)
D\(\frac{1}{3}\)
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Question 29
waec2007
Solve the simultaneous equations x + y = 2 and 3x - 2y = 1
Ax = 2 and y = 1
Bx = 1 and y = 1
Cx = 1 and y = 2
Dx = -1 and y = 1
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Question 30
waec2007
If x = 3, Y = 2 and z = 4, what is the value of 3x2 - 2y + z?
