The bar chart shows the frequency distribution of marks scored by students in a class test. What is the median of the distribution?
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2012
The bar chart shows the frequency distribution of marks scored by students in a class test. Calculate the mean of the distribution.
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2012
The bar chart shows the frequency distribution of marks scored by students in a class test. How many students are in the class?
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2012
The position of three ships P,Q and R at sea are illustrated in the diagram. The arrows indicated the North direction. The bearing of Q from P is 050° and < PQR = 72°. Calculate the bearing of R and Q
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2012
In the diagram, MN, PQ and RS are three intersecting straight lines. Which of the following statements is/are true?
i. t = y
ii. x + y + z + m = 180°
iii. x + m + n = 180°
iv. x + n = m + z
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2012
The diagram is a circle centre O. If < SPR = 2m and < SQR = n, express m in terms of n
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2012
Factorise completely: 32x2y - x3y3
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2012
A side and a diagonal of a rhombus are 10cm and 12cm respectively, Find its area
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2012
The volume of a cuboid is 54 cm3. If the length, width and height of the cuboid are in the ratio 2:1:2 respectively, find its total surface area
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2012
Find the coefficient of m in the expression of \((\frac{m}{2} - 1\frac{1}{2})(m + \frac{2}{3})\)
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2012
(a) In the diagram, /PQ/ = 6 cm, /QR/ = 13 cm, /RS/ = 5 cm and < RSQ is a right- angled triangle. Calculate, correct to one decimal place, /PS/.(b) The diagram show a wooden structure in the form of a cone mounted…
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2012
(a) Copy and complete the table of values for \(y = 1 - 4\cos x\).x0°30°60°90°120°150°180°210°240°270°300°y-3.01.04.5-1.0(b) Using a scale of 2cm to 30° on the x- axis and 2cm to 1 unit on the y- axis, draw the graph of…
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2012
(a) In the diagram, ABCD is a rectangular garden (3n - 1)m long and (2n + 1)m wide. A wire mesh 135m long is used to mark its boundary and to divide it into 8 equal plots. Find the value of n.(b) A cylinder with base ra…
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2012
ClassIntervalFrequency60 - 64265 - 69370 - 74675 - 791180 - 84885 - 89790 - 94295 - 991The table shows the distribution of marks scored by students in an examination. Calculate, correct to 2 decimal places, the(a) mean…
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2012
Three towns X, Y and Z are such that Y is 20 km from X and 22 km from Z. Town X is 18 km from Z. A health centre is to be built by the government to serve the three towns. The centre is to be located such that patients…
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2012
A point H is 20 m away from the foot of a tower on the same horizontal ground. From the point H, the angle of elevation of the point P on the tower and the top (T) of the tower are 30° and 50° respectively. Calculate, c…
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2012
(a) (i) Using a scale of 2 cm to 1 unit on both axes, on the same graph sheet, draw the graphs of \(y - \frac{3x}{4} = 3\) and \(y + 2x = 6\).(ii) From your graph, find the coordinates of the point of intersection of th…
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2012
(a) A boy had M Dalasis (D). He spent D15 and shared the remainder equally with his sister. If the sister's share was equal to \(\frac{1}{3}\) of M, find the value of M.(b) A number of tourists were interviewed on their…
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2012
In the diagram, O is the centre of the circleand XY is a chord. If the radius is 5 cm and /XY/ = 6 cm, calculate, correct to 2 decimal places, the :(a) angle which XY subtends at the centre O ;(b) area of the shaded por…
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2012
(a) A box contains 40 identical discs which are either red or white. If the probability of picking a red disc is \(\frac{1}{4}\); Calculate the number of (i) white discs ; (ii) red discs that should be added such that t…