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Pregunta 1 Informe
A variable y is inversely proportional to x2, when y = 10, x = 2. What is y when x = 10?
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Pregunta 2 Informe
The square base of a pyramid of side 3cm has height 8cm. If the pyramid is cut into two parts by a plane parallel to the base midway between the base and the vertex, the volumes of the two sections are
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Pregunta 3 Informe
A sector of a circle is bounded by two radii 7cm long and an arc length 6cm. Find the area of the sector.
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Pregunta 6 Informe
Find the values of x for which the expression x2+x−2(x−3)(x−2)
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Pregunta 7 Informe
The quantity y is partly constant and partly varies inversely as the square of x. With P and Q as constants, a possible relationship between x and y is
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Pregunta 8 Informe
A world congress of mathematicians were held in Nice in 1970 with 800 people participating. There were 300 from Europe, 200 from America, 150 from Asia, 45 from Africa and 105 from Australia. Representing the above on a pie chart, the angle of the sector representing the participant is
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Pregunta 9 Informe
A side of a rhombus is 2cm in length. An angle of the rhombus is 60o. What is the length of the diagonal facing this angle?
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Pregunta 13 Informe
The graphical method of solving the equation x3 + 3x2 + 4x - 28 = 0 is by drawing the graphs of the curves
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Pregunta 15 Informe
In a regular polygon of n sides, each interior angle is 144o. Find n
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Pregunta 16 Informe
A stone Q is tied to a point P vertically above Q by an inelastic string of length 2 meters. How high does the stone rise when the string is inclined at an angle 60o to the vertical?
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Pregunta 17 Informe
In the figure, QRST is a rectangle; PT// QM, angle P = 60o. Find angle MUR
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Pregunta 18 Informe
Two distinct sectors i the same circle substend 100o and 30o respectively at the centre of the circle. Their corresponding arcs are in ratio
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Pregunta 19 Informe
If f(x - 2) = 3x2 + 4x + 1. Find the area of the sector
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Pregunta 20 Informe
The solution to the quadratic equation 5 + 3x - 2x2 = 0 is
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Pregunta 21 Informe
The diagram is the distance time graph of a vehicle. Find its average speed in kilometers per hour during the journey
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Pregunta 23 Informe
A man bought wrist watch for N150 but was only able to sell it for N120. Find the loss per cent on the transaction
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Pregunta 24 Informe
In the diagram, angle QPR = 90o, angle PSR = 90o and PR = 5 units. Find the length of QS.
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Pregunta 25 Informe
The diameter of a metal rod is measured as 23.40 cm to four significant figures. What is the maximum error in the measurement?
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Pregunta 26 Informe
TP and TQ are tangents to a circle centre 0 and r is a point on the circumference of the circle as shown in the figure. If angle PTQ = 45o, what is the magnitude of the angle PRO?
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Pregunta 27 Informe
PQRS is a parallelogram with area 50 square cm and the side PQ is 10cm long. T is a point on RS and TF is the altitude of the triangle TPQ. Find TF
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Pregunta 28 Informe
If the function y = 5x is graphed, what would be its intercept on the y-axis?
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Pregunta 29 Informe
The area of the curved surface of the cone generated by the sector of a circle radius 6cm and are length 22cm is (π = 722)
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Pregunta 30 Informe
Find α and β such that x83 x y7−6 x (x845y79)91 = yβyα
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Pregunta 31 Informe
If K is a constant, which of the following equations best describes the parabola?
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Pregunta 34 Informe
Seven years ago, the age of a father was three times that of his son, but in six years time the age of the son will be half that of his father, representing the present ages of the father and son by x and y, respectively, the two equations relating x and y are
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Pregunta 35 Informe
The solution of the quadratic equation bx2 + cx + a = 0 is given by
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Pregunta 36 Informe
The solution to the simultaneous equations 3x + 5y = 4, 4x + 3y = 5 is
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Pregunta 37 Informe
Find the median of the set set of numbers 110, 116, 113, 119, 118, 127, 118, 117, 113
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Pregunta 39 Informe
What is the least possible value of 1+2x29 if 0 ≥ x ≥ 2?
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Pregunta 40 Informe
Determine the mean monthly salary of 50 employees of a company from the following frequency distribution.
Monthly salaryN200.00N325.00N100.00N120.00N60.00N80.00Frequency105202103
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Pregunta 41 Informe
Write the equation 2 log2x - x log2(1 + y) = 3 in a form not involving logarithms
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Pregunta 42 Informe
A housewife bought 3 kilograms of garri at N13.00 per kg. She deposited N160. 00 for half a cow and bought 24 oranges at 10k each. She came back home with N20.60. She therefore left home with
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Pregunta 43 Informe
Which of the following lines is not parallel to the line 3y + 2x + 7 = 0?
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Pregunta 44 Informe
In the fiqure where PQRTU is a circle, ISTI = IRSI and angle TSR = 52o. Find the angle marked m
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Pregunta 45 Informe
The currency used in a country is called 'Matimalik'(M) and is of base seven. A lady in that country bought 4 bags of rice at M56 per bag and and 3 tins of milk at M4 per tin. What is the total cost of the item she bought?
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Pregunta 46 Informe
The arithmetic mean of the ages of 30 pupils in a class is 15.3 years. One boy leaves the class and one girl is enrolled, and the new average age of 30 pupils in the class becomes 15.2 years. How much older is the boy than the girl?
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Pregunta 47 Informe
If N560.70 is shared in the ratio 7 : 2 : 1, what is the smallest share?
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