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Two circles have radii 16cm and 23cm. What is the difference between their circumference? take \(\pi = \frac{22}{7}\)
A422.92cm
B149.92cm
C44.00cm
D43.96cm
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Question 952
waec2007
Simplify \(\frac{4}{2x} - \frac{2x + x}{x}\)
A-1
B-2x
C2x
D\(\frac{2 - x}{2x}\)
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Question 953
waec2007
Expand the expression(3a - xy)(3a + xy)
A9a2 - x2y2
B9a2 + x2y2
C9a2 - xy
D9a2 + x2y
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Question 954
waec2007
Find the smallest value of k such that 2\(^2\) x 3\(^3\) x 5 x k is a perfect square.
A3
B5
C15
D30
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Question 955
waec2007
For what range of values of x is 4x - 3(2x - 1) > 1?
Ax > -1
Bx > 1
Cx < 1
Dx < -1
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Question 956
waec2007
make w the subject of the relation \(\frac{a + bc}{wd + f}\) = g
A\(\frac{a + bc - fg}{dg}\)
B\(\frac{a - bc + fg}{dg}\)
C\(\frac{a + bc - f}{dg}\)
D\(\frac{a + bc - dg}{dg}\)
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Question 957
waec2007
Which of the following is a factor of 2 - x - x2?
A1 - x
B1 + x
Cx - 1
D2 - x
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Question 958
waec2007
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 959
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 960
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 961
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 962
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 963
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 964
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 965
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 966
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 967
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 968
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 969
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 970
waec2007
Each of the interior angle of a regular polygon is 162o. How many sides has the polygon?
