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The bar chart above shows the distribution of marks in a class test. If the pass mark is 5, what percentage of students failed the test?
A10%
B20%
C50%
D60%
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Question 712
jamb2012
The grades of 36 students in a class test are as shown in the pie chart above. How many students have excellent?
A12
B9
C8
D7
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Question 713
jamb2012
Find the area of the trapezium above.
A91 cm2
B78 cm2
C60 cm2
D19 cm2
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Question 714
jamb2012
In the diagram above, PQR is a circle centre O. If < QPR is x°, find < QRP.
Ax°
B(90 – x)°
C(90 + x)°
D(180 – x)°
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Question 715
jamb2012
In diagram above, QR//TU, < PQR = 80° and < PSU = 95°. Calculate < SUT.
A15o
B25o
C30o
D80o
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Question 716
jamb2012
The shaded region above is represented by
the equation
Ay ≤ 4x + 2
By ≥ 4x + 2
Cy ≤ -4x + 4
Dy ≤ 4x + 4
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Question 717
jamb2012
The probabilities that a man and his wife live for 80 years are \(\frac{2}{3}\) and \(\frac{3}{5}\) respectively. Find the probability that at least one of them will live up to 80 years
A\(\frac{2}{15}\)
B\(\frac{3}{15}\)
C\(\frac{7}{15}\)
D\(\frac{13}{15}\)
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Question 718
jamb2012
The probability that a student passes a physics test is \(\frac{2}{3}\). If he takes three physics tests, what is the probability that he passes two of the tests?
A\(\frac{2}{27}\)
B\(\frac{3}{27}\)
C\(\frac{4}{27}\)
D\(\frac{5}{3}\)
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Question 719
jamb2012
In how many ways can the letters of the word TOTALITY be arranged?
A6720
B6270
C6207
D6027
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Question 720
jamb2012
Evaluate n+1Cn-2 If n =15
A3630
B3360
C1120
D560
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Question 721
jamb2012
Find the standard deviation of 2,3,8,10 and 12
A3.9
B4.9
C5.9
D6.9
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Question 722
jamb2012
Find the range of 4,9,6,3,2,8,10 and 11
A11
B9
C8
D4
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Question 723
jamb2012
Find the median of 2,3,7,3,4,5,8,9,9,4,5,3,4,2,4 and 5
A9
B8
C7
D4
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Question 724
jamb2012
The mean of seven numbers is 96. If an eighth number is added, the mean becomes 112. Find the eighth number.
A126
B180
C216
D224
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Question 725
jamb2012
Evaluate \(\int^{\frac{\pi}{4}}_0sec^2 \theta d \theta\)
A1
B2
C3
D4
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Question 726
jamb2012
Evaluate \(\int^2_1(x^2 - 4x)dx\)
A\(\frac{11}{3}\)
B\(\frac{3}{11}\)
C\(-\frac{3}{11}\)
D\(-\frac{11}{3}\)
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Question 727
jamb2012
If y = x2 - \(\frac{1}{x}\), find \(\frac{\delta y}{\delta x}\)
A2x - \(\frac{1}{x^2}\)
B2x + x2
C2x - x2
D2x + \(\frac{1}{x^2}\)
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Question 728
jamb2012
If angle \(\theta\) is 135o, evaluate cos\(\theta\)
A\(\frac{1}{2}\)
B\(\frac{\sqrt{2}}{2}\)
C\(-\frac{\sqrt{2}}{2}\)
D\(-\frac{1}{2}\)
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Question 729
jamb2012
Find the equation of the line through the points (-2, 1) and (-\(\frac{1}{2}\), 4)
Ay = 2x - 3
By = 2x + 5
Cy = 3x - 2
Dy = 2x + 1
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Question 730
jamb2012
The distance between the point (4, 3) and the intersection of y = 2x + 4 and y = 7 - x is
