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Which of the following is not a measure of centre tendency?
Amean
Bmode
Crange
Dmedian
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Question 1012
waec2006
A rectangular carpet 2.5m long and 2.4m wide covers 5% of a rectangular floor. Calculate the area of the floor
A30m2
B57m2
C120m2
D225m2
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Question 1013
waec2006
The values of three angles at a point are 3y - 45o, y + 25o and yo . Find the value of y.
A40o
B58o
C68o
D76o
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Question 1014
waec2006
If p = {1, 3, 5, 7, 9} and Q = {2, 4, 6, 8, 10} are subsets of a universal set. U = {1, 2, 3, 4, 5, 6, 7, 8, 9, 10}. What are the elements of P1 \(\cap\) Q1?
A{1, 3, 5, 7, 9}
B[2, 4, 6, 8, 10}
C\(\varnothing\)
D{1, 2, 6, 8, 10}
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Question 1015
waec2006
The wheel of a tractor has a diameter 1.4m. What distance does it cover in 100 complete revolutions? [Take \(\pi = \frac{22}{7}\)]
A140m
B220m
C280m
D440m
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Question 1016
waec2006
A seller allows 20% discount for cash payment on the marked price of his goods. What is the ratio of the cash payment to the marked price
A1:4
B1:5
C3:4
D4:5
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Question 1017
waec2006
If p = [\(\frac{Q(R - T)}{15}\)]\(^ \frac{1}{3}\), make T the subject of the relation
AT = R + \(\frac{P^3}{15Q}\)
BT = R - \(\frac{15P^3}{Q}\)
CT = R + \(\frac{P^3}{15Q}\)
DT = 15R - \(\frac{Q}{P^3}\)
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Question 1018
waec2006
a conical water-jug is 7cm in diameter and 6cm deep. find the volume of water it can hold. [Take \(\pi = \frac{22}{7}\)]
A22cm2
B44cm3
C77cm3
D3082
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Question 1019
waec2006
If loga270 - loga10 + loga \(\frac{1}{3}\) = 2, what is the value of a?
A3
B4
C5
D6
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Question 1020
waec2006
Which of these equations best describes the points of intersection of the curve and the line?
A\(x^2 + 5x - 6 = 0\)
Bx2 - 5x - 6 = 0
Cx2 + x - 6 = 0
Dx2 - x - 6 = 0
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Question 1021
waec2006
If x + y = 12 and 3x - y = 20, find the value of 2x - y
A8
B10
C12
D15
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Question 1022
waec2006
If 2x + y = 10, and y \(\neq\) 0, which of the following is not a possible value of x?
A4
B5
C8
D10
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Question 1023
waec2006
A machine valued at N20,000 depreciates by 10% every year. What will be the value of the machine at the end of two years?
AN16,200
BN1,4,200
C12,000
D8000.
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Question 1024
waec2006
If the simple interest on a sum of money invested at 3% per annum for 2\(\frac{1}{2}\) years is N123, find the principal.
AN676.50
BN820
CN1,640
DN4,920
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Question 1025
waec2006
What is the place value of 9 in the number 3.0492?
A\(\frac{9}{10000}\)
B\(\frac{9}{1000}\)
C\(\frac{9}{100}\)
D\(\frac{9}{10}\)
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Question 1026
waec2006
Given that (2x - 1)(x + 5) = 2x2 - mx - 5, what is the value of m
A11
B5
C-9
D-10
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Question 1027
waec2006
What must be added to x2 - 3x to make it a perfect square?
A\(\frac{9}{4}\)
B\(\frac{9}{2}\)
C6
D9
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Question 1028
waec2006
\(\begin{array}{c|c} x & 1 & 4 & p \\ \hline y & 0.5 & 1 & 2.5\end{array}\). The table below satisfies the relation y = k\(\sqrt{x}\), where k is a positive constant. Find the value of P,
A2
B4
C10
D25
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Question 1029
waec2006
\(\begin{array}{c|c} x & 1 & 4 & p \\ \hline y & 0.5 & 1 & 2.5\end{array}\). The table above satisfies the relation y = k\(\sqrt{x}\), where k is a positive constant. Find the value of K.
A0.5
B1
C1.5
D2
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Question 1030
waec2006
The ratio of boys to girls in a class is 5:3. Find the probability of selecting at random, a girl from the class
