Question 0Without using tables, evaluate (343)1/3 x ( 0.14)-1 x (25)-1/2A.10B.12C.8D.7E.Objective Show full explanation
Question 0In a school, 220 students offer Biology or Mathematics or both. 125 offer Biology and 110 mathematics. How many offer Biology but not Mathematics?A.95B.80C.125D.110E.Objective Show full explanation
Question 0Evaluate: (0.21 x 0.072 x 0.00054) (0.006 x 1.68 x 0.063), correct to 4.s.fA.0.01286B.0.01285C.0.1286D.0.1285E.Objective Show full explanation
Question 0A trader bought goats for N4000 each. He sold them for N180,000 at a loss of 25%. How many goats did he buy?A.60B.50C.45D.36E.Objective Show full explanation
Question 0If dy/dx = 2x - 3 and y = 3 when x = 0, find y in terms of x.A.2x2 - 3xB.x2 - 3xC.x2 - 3x - 3D.x2 - 3x + 3E.Objective Show full explanation
Question 0Find the derivative of y = sin2(5x) with respect to x.A.10 sin 5x cos 5xB.5 sin5x cos 5xC.2 sin 5x cos 5xD.15 sin 5x cos 5xE.Objective Show full explanation
Question 0The slope of the tangent to the curve y = 3x2 - 2x + 5 at the point (1, 6) isA.4B.1C.6D.5E.Objective Show full explanation
Question 0Evaluate ∫sin 3x dxA.(2/3) cos 3x + cB.(1/3) cos 3x + cC.(-1/3) cos 3x + cD.(-2/3) cos 3x + cE.Objective Show full explanation
Question 0A circle with radius 5cm has its radius increasing at the rate of 0.2m/s. What will be the corresponding increase in the area?A.2πB.5πC.πD.4πE.Objective Show full explanation
Question 0If y = x2 - (1/x). find dy/dxA.2x - (1/x2)B.2x + x2C.2x - x2D.2x + (1/x2)E.Objective Show full explanation
Question 0Solve for x in the equation x3 - 5x2 - x + 5 = 0A.1, - 1, or 5B.1, 1, or -5C.-1, 1, or -5D.1, 1, or 5E.Objective Show full explanation
Question 0The time taken to do a piece of work is inversely proportional to the number of men employed. if it takes 45 men to do a piece of work in 5 days, how long will it take 25 men?A.15 daysB.12 daysC.5 daysD.9 daysE.Objective Show full explanation
Question 0Find the range of values of x for which \(\frac{(x+2)}{4}-\frac{2x-3}{3}<4\)A.x > -6B.x > -3C.x < 8D.x < 4E.Objective Show full explanation
Question 0Find the maximum value of y in the equation y = 1 - 2x - 3x2A.5/4B.5/3C.3/4D.4/3E.Objective Show full explanation
Question 0If the 9th term of an A.P is five times the 5th term, find the relationship between a and d.A.2a + 2 = 0B.3a + 5d = 0C.a + 3d = 0D.a + 2d = 0E.Objective Show full explanation
Question 0Make r subject of the formula given that \(\frac{x}{r+a}=\frac{a}{r}\)A.\(\frac{a^{2}}{(x-a)}\)B.\(\frac{a^{2}}{(x+a)}\)C.\(\frac{a}{x-a}\)D.\(\frac{a}{x+a}\)E.Objective Show full explanation
Question 0The inverse function f(x) = 3x + 4 isA.(x-4)/3B.(x-5)/5C.(x+3)/4D.(x+4)/3E.Objective Show full explanation
Question 0If -2 is the solution of the equation 2x + 1 - 3c = 2c + 3x - 7, find the value of c.A.4B.3C.2D.1E.Objective Show full explanation
Question 0The ninary operation * is defined on the set of integers p and q by p*q = pq + p + q. Find 2 * (3 * 4).A.59B.19C.67D.38E.Objective Show full explanation
Question 0The sum to infinity of the series: 1 + (1/3) + (1/9) + (1/27) + ... isA.11/3B.10/3C.5/2D.3/2E.Objective Show full explanation
Question 0If x varies directly as √n and x = 9 when n = 9, find x when n = (17/9)A.4B.27C.√3D.√17E.Objective Show full explanation
Question 0A chord of a circle subtends an angle of 12o degrees at the centre of a circle of diameter 4√3 cm. Calculate the area of the major sector.A.4π cm2B.32 π cm2C.16 π cm2D.8 π cm2E.Objective Show full explanation
Question 0If tan θ = 4/3, calculate sin2θ - cos2θ.A.16/25B.24/25C.7/25D.9/25E.Objective Show full explanation
Question 0Find the equation of the set of points which are equidistant from the parallel lines x = 1 and x = 7A.y = 3B.x = 3C.x = 4D.y = 4E.Objective Show full explanation
Question 0A bucket is 12 cm in diameter at the top, 8 cm in diameterat the bottom and 4 cm deep. Calculate its volume.A.304π/3 cm3B.144π cm3C.128π cm3D.72π cm3E.Objective Show full explanation
Question 0The sum of the interior angles of a polygon is 20 right angles. How many sides does the polygon have?A.12B.20C.40D.10E.Objective Show full explanation
Question 0Find the coordinates of the mid-point of x and y intercepts of the line 2y = 4x - 8A.(2, 0)B.(1, -2)C.(-1, -2)D.(1, 2)E.Objective Show full explanation
Question 0A hunter 1.6 m tall, views a bird on top of a tree at an angle of 45 degrees. if the distance between the hunter and the tree is 10.4 m, find the height of the tree.A.9.0 mB.12. 0 mC.8.8 mD.10.4 mE.Objective Show full explanation
Question 0A solid hemisphere has a radius of 7 cm. Find the total surface area.A.400 cm2B.462 cm2C.66 cm2D.308 cm2E.Objective Show full explanation
Question 0Find the value of a if the line 2y - ax + 4 = 0 is perpendicular to the line y + (x/4) - 7 = 0A.-4B.4C.8D.-8E.Objective Show full explanation
Question 0The locus of a point P which is equidistant from two given points S and T isA.the perpendicular bisector of STB.the angle bisector of PS and STC.a perpendicular to STD.a line parallel to STE.Objective Show full explanation
Question 0Find the mean of the data: 7, -3, 4, -2, 5, -9, 4, 8, -6, 12A.3B.4C.1D.2E.Objective Show full explanation
Question 0The range of the data: k+2, k-3, k+4, k-2, k, k-5, k+3, k-1, and k+6 isA.10B.11C.6D.8E.Objective Show full explanation
Question 0The probability of a student passing any exam is 2/3. If the student takes three exams, what is the probability that he will not pass any of them?A.2/3B.4/9C.8/27D.1/27E.Objective Show full explanation
Question 0The acres for rice, pineapple, cassava, cocoa, and palm oil in a certain district are given respectively as 2, 5, 3, 11, and 9. What is the angle sector for cassava in a pie chart?A.108°B.180°C.36°D.60°E.Objective Show full explanation
Question 0How many three-digit numbers can be formed from 32564 without repeating any of the digits?A.120B.10C.20D.60E.Objective Show full explanation
Question 0The mean of a set of six numbers is 60. If the mean of the first five is 50, find the sixth number in the set.A.105B.100C.95D.110E.Objective Show full explanation
Question 0Calculate the mean deviation of the set of numbers 7, 3, 14, 9, 7, and 8.A.13/6B.5/2C.7/6D.7/3E.Objective Show full explanation
Question 0In the diagram above , XZ is the diameter of the circle XZW, with center O and radius 15/2 cm. If XY = 12 cm, find the area of the triangle XYZA.54 cm2B.45 cm2C.27 cm2D.75 cm2E.Objective Show full explanation
Question 0The venn diagram above shows the numbers of students offering music and history in a class of 80 students. If a student is picked at random from the class, what is the probability that he offers Music only?A.0.38B.0.13C.0.50D.0.25E.Objective Show full explanation
Question 0In the diagram above, PST is a straight line, PQ = QS = RS. If ∠RST = 72o, find xA.36oB.18oC.72oD.24oE.Objective Show full explanation
Question 0In the diagram above are two concentric circles of radii r and R respectively with center O. If r = 2/3R, express the area of the shaded portion in terms of π and RA.21/25πR2B.9/25πR2C.21/23πR2D.5/9πR2E.Objective Show full explanation
Question 0In the diagram above, a cylinder is summounted by a hemisphere bowl. Calculate the volume of the solid.A.180 πcm3B.162 πcm3C.216 πcm3D.198 πcm3E.Objective Show full explanation
Question 0The triangle PQR above isA.an obtuse-angled triangleB.a scalene triangleC.an isosceles triangleD.an equilateral triangleE.Objective Show full explanation
Question 0No. of days123456No. of students20x50402x60 The distribution above shows the number of days a group of 260 students were absents from school in a particular term. How many students were absent for at least four days in the termA.210B.40C.120D.160E.Objective Show full explanation
Question 0The venn diagram shows the number of students offering Music and History in a class of 80 students. If a student is picked at random from the class, what is the probability that he offers Music only?A.0.25B.0.38C.0.50D.0.13E.Objective Show full explanation
Question 0Using the graph find the values of p and q if px + qy \(\geq\) 4A.p = 2, q = -1B.p = -1, q = 2C.p = 2, q = 2D.p = 1, q = 2E.Objective Show full explanation
Question 0The triangle POR isA.an isosceles triangeB.an obtuse angleC.a scalene triangleD.an equilateral triangleE.Objective Show full explanation