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Pregunta 1 Informe
Twenty girls and y boys sat on an examination. The mean marks obtained by the girls and boys were 52 and 57 respectively. if the total score for both girls and boys was 2750, find y.
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Pregunta 2 Informe
Rationalize the expression \(\frac{(7 - \sqrt{3})}{(13 - \sqrt{3})}\)
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Pregunta 4 Informe
Which of the following angular inequalities defines an obtuse angle?
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Pregunta 5 Informe
A man travels at a rate of 25m/sec. If he travels for 10½hrs, how many kilometres has he covered?
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Pregunta 6 Informe
Find the mean deviation of 20, 25, 21, 27, 28, 29, to the nearest whole number
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Pregunta 7 Informe
The radii of two similar cylindrical jugs are in the ratio 3:7. Calculate the ratio of their volumes
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Pregunta 8 Informe
T varies inversely as the square root of F when T = 7, F = 2\(\frac{1}{4}\). Find T when F = \(\frac{27}{9}\)
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Pregunta 10 Informe
Construct a quadratic equation whose roots are -\(\frac{3}{2}\) and 7
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Pregunta 11 Informe
Two ladders of length 5m and 7m lean against a pole and make angles 45° and 60° with the ground respectively. What is their distance apart on the pole correct to two decimal places?
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Pregunta 12 Informe
Bello chooses a number randomly from 1 to 10. What is the probability that it is either odd or prime?
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Pregunta 13 Informe
A pair of shoes was sold for N2,250.00 at a loss of 10%. What was the cost price?
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Pregunta 14 Informe
The ages of 10 students in a class are; 15, 16, 15.5, 17, 14.9, 14.5, 14.1, 15.1, 14.8. find the range of their ages.
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Pregunta 15 Informe
Calculate the area of a parallelogram whose diagonals are of length 8cm and 12cm and intersect at an angle of 135°
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Pregunta 16 Informe
If A = \(\frac{1}{2}\)h (a + b), make ‘a’ the subject of the formula
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Pregunta 17 Informe
The chances of Usman and Dele passing a Mathematics test are 12 and 13 respectively. What is the probability that neither of them passes the test?
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Pregunta 19 Informe
A chord XY of a circle with centre O and radius 5.32cm has ∠XOY = 140°. What is the length of the chord to the nearest centimetre?
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Pregunta 21 Informe
Simplify the expression: \(Log_{4}16\) + \(Log_{3}27\) + \(Log_{8}4096\)
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Pregunta 22 Informe
If tan α = \(\frac{1}{2}\) and tan β = \(\frac{1}{3}\) and both α and β are acute, find tan (α + β).
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Pregunta 23 Informe
2 bags of sugar at Nx per bag are mixed with 3 bags of sugar at Ny per bag. What is the cost in N of the mixture per bag?
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Pregunta 25 Informe
If y + \(\frac{1}{y}\) = 9, evaluate y2 + \(\frac{1}{y^2}\)
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Pregunta 26 Informe
In proving the congruence of two triangles, which of the following is not important?
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Pregunta 28 Informe
x varies directly as y and inversely as z. when x = 5, y = 2 and z = 1. What is the value of x when y = 5 and z = 2?
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Pregunta 29 Informe
If N25,000.00 is kept in a bank at the rate of 2% simple interest, how much will it amount to at the end of 5 years?
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Pregunta 30 Informe
If the 3rd and the 5th terms of an A.P are 6 and 10 respectively, find the 1st term and the common difference respectively.
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Pregunta 31 Informe
Given that x2 + y2 + k = 60 and x = \(\sqrt{10}\) when y = 4 , find the value of k.
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x2 + y2 + k = 60
(?10)2 + (4)2 + k = 60
k + 10 + 16 = 60
k = 60 - 26
k = 34
Pregunta 33 Informe
P = {x:(x - 2)(x + 3) (x - 4)(x + 5) = 0}. The elements in P are
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Pregunta 34 Informe
The ages of Abu, Segun, Kofi and Funmi are 17 years, (2x -13) years, 14 years and 16 years respectively. What is the value of x if their mean ages is 17.5 years?
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Pregunta 35 Informe
Find the coefficient of xy in the expansion of (x - 4y)(3x + 2y)
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Pregunta 36 Informe
which of the following properties is/are common to parallelograms and rectangles?
I. all angles are right angles
II. the diagonals are equals.
III. the opposite sides are equal and parallel.
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Pregunta 37 Informe
The graph of cumulative frequency distribution is known as
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Pregunta 38 Informe
A sector of angle 120° is cut out from a circle of radius 13.5cm. what area of the circle is remaining ? (π = \(\frac{22}{7}\))
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Pregunta 39 Informe
The ratio of the base area of a hollow cone to that of its curved surface is 1:4. If its base radius is 7cm, calculate the slant height of the cone
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