Question 0Evaluate 21.05347 - 1.6324 x 0.43 to 3 decimal placesA.20.980B.20.351C.20.981D.20.352E.Objective Show full explanation
Question 0Given that \(p = 1 + \sqrt{2}\hspace{1mm}and\hspace{1mm}q = 1 -\sqrt{2},\hspace{1mm}evaluate\hspace{1mm}\frac{(p^{2} - q^{2})}{2pq}\)A.2(2+√2)B.-2(2+√2)C.2√2D.-2√2E.Objective Show full explanation
Question 0A car dealer bought a second-hand car for N250,000 and spent N70,000 refurbishing it. He then sold the car for N400,000. What is the percentage gain?A.60%B.32%C.25%D.20%E.Objective Show full explanation
Question 0If \(x = \frac{y}{2}\),evaluate\(\left(\frac{x^{3}}{y^{3}}+\frac{1}{2}\right) \div \left(\frac{1}{2} - \frac{x^{2}}{y^{2}}\right)\)A.5/8B.5/2C.5/4D.5/16E.Objective Show full explanation
Question 0Find the principal which amounts to N5,500 at a simple interest in 5 years at 2% per annum.A.N4,900B.N5,000C.N4,700D.N4,800E.Objective Show full explanation
Question 0Evaluate (0.142 x 0.275) 7(0.02) to 3 decimal places.A.0.039B.0.358C.0.033D.0.308E.Objective Show full explanation
Question 0Divide: ax3x - 26x2x + 156ax - 216 by a2x - 24ax + 108A.ax - 2B.ax + 2C.ax - 8D.ax - 6E.Objective Show full explanation
Question 0If two graphs y = px2 + q and y = 2x2 -1 intersect at x = 2, find the value of p in terms q.A.\(\frac{q-8}{7}\)B.\(\frac{7-q}{4}\)C.\(\frac{8-q}{2}\)D.\(\frac{7+q}{8}\)E.Objective Show full explanation
Question 0Find the integral values of x and y satisfying the inequality 3y + 5x \(\leq\) 15, given that y > 0, y < 3 and x > 0.A.(1,1), (1,2), (1,3)B.(1,1), (2,1), (1,3)C.(1,1), (3,1), (2,2)D.(1,1), (1,2), (2,1)E.Objective Show full explanation
Question 0Solve the equations m2 + n2 = 29 m + n = 7A.(2, 3) and ( 3, 5)B.(2, 5) and (5, 2)C.(5, 2) and ( 5, 3)D.(5, 3) and (3, 5)E.Objective Show full explanation
Question 0An operation * is defined on the set of real numbers by a*b = a + b + 1. If the identity elements is -1, find the inverse of the element 2 under *.A.4B.zeroC.-2D.-4E.Objective Show full explanation
Question 0The sixth term of an A.P is half of its twelfth term. The first term of the A.P is equal toA.zeroB.half of the common differenceC.double the common differenceD.the common differenceE.Objective Show full explanation
Question 0Factorize 4x2 - 9y2 + 20x + 25A.(2x -3y + 5)(2x - 3y - 5)B.(2x - 3y)(2x + 3y)C.(2x - 3y +5)(2x + 3y + 5)D.(2x + 5)(2x - 9y +5)E.Objective Show full explanation
Question 0a sector of a circle of radius 7.2cm which subtends an angle of 300° at the centre is used to form a cone. What is the radius of the base of the cone?A.8cmB.6cmC.9cmD.7cmE.Objective Show full explanation
Question 0A point P moves such that it is equidistant from Points Q and R. Find QR when PR = 8cm and angle PRQ = 30°A.4√3cmB.8cmC.8√3cmD.4cmE.Objective Show full explanation
Question 0A straight line makes an angle of 30° with the positive x-axis and cuts the y-axis at y = 5. Find the equation of the straight line.A.y = (x/10) + 5B.y = x + 5C.√3y = - x + 5√3D.√3y = x + 5√3E.Objective Show full explanation
Question 0Given an isosceles triangle with length of 2 equal sides t units and opposite side √3t units with angle θ. Find the value of the angle θ opposite to the √3t units.A.100°B.120°C.30°D.60°E.Objective Show full explanation
Question 0Find the value of P if the line joining (P, 4) and (6, -2) is perpendicular to the line joining (2, P) and (-1, 3).A.4B.6C.3D.zeroE.Objective Show full explanation
Question 0Find the number of sides of a regular polygon whose interior angle is twice the exterior angle.A.6B.2C.3D.8E.Objective Show full explanation
Question 0P(-6, 1) and Q(6, 6) are the two ends of the diameter of a given circle. Calculate the radius.A.6.5 unitsB.13.0 unitsC.3.5 unitsD.7.0 unitsE.Objective Show full explanation
Question 0The bearings of P and Q from a common point N are 020° and 300° respectively. If P and Q are also equidistant from N, find the bearing of P from Q.A.040°B.070°C.280°D.320°E.Objective Show full explanation
Question 0A cylindrical tank has a capacity of 3080 m3. What is the depth of the tank if the diameter of its base is 14 m? (Take pi = 22/7)A.23 mB.25 mC.20 mD.22 mE.Objective Show full explanation
Question 0Find the locus of a point which moves such that its distance from the line y = 4 is a constant, k.A.y = k + or - 4B.y = 4 + or - kC.y = 4 + kD.y = k - 4E.Objective Show full explanation
Question 0The chord ST of a circle is equal to the radius, r, of the circle. Find the length of arc ST.A.πr/6B.πr/2C.πr/12D.πr/3E.Objective Show full explanation
Question 0If the gradient of the curve y = 2kx2 + x + 1 at x = 1 is 9, find k.A.4B.3C.2D.1E.Objective Show full explanation
Question 0Evaluate ∫2(2x-3)2/3dxA.3/5(2x-3)5/3 + kB.6/5(2x-3)5/3 + kC.2x-3+kD.2(2x-3)+kE.Objective Show full explanation
Question 0Differentiate (2x+5)2(x-4) with respect to x.A.4(2x+5)(x-4)B.4(2x+5)(4x-3)C.(2x+5)(2x-13)D.(2x+5)(6x-11)E.Objective Show full explanation
Question 0Find the area bounded by the curves y = 4 - x2 and y = 2x + 1A.20(1/3) sq. unitsB.20(2/3) sq. unitsC.10(2/3) sq. unitsD.10(1/3) sq. unitsE.Objective Show full explanation
Question 0Find the rate of change of the volume, V of a sphere with respect to its radius, r when r = 1.A.12πB.4πC.24πD.8πE.Objective Show full explanation
Question 0Find the dimensions of a rectangle of greatest area which has a fixed perimeter p.A.square of sides pB.square of sides 2pC.square of sides (p/2)D.square of sides (p/4)E.Objective Show full explanation
Question 0Given the scores: 4, 7, 8, 11, 13, 8 with corresponding frequencies: 3, 5, 2, 7, 2, 1 respectively. Find the square of the mode.A.49B.121C.25D.64E.Objective Show full explanation
Question 0Given the scores: 4, 7, 8, 11, 13, 8 with corresponding frequencies: 3, 5, 2, 7, 2, 1 respectively. Find the square of the mode.A.49B.121C.25D.64E.Objective Show full explanation
Question 0Given the scores: 4, 7, 8, 11, 13, 8 with corresponding frequencies: 3, 5, 2, 7, 2, 1 respectively. The mean score isA.7.0B.8.7C.9.5D.11.0E.Objective Show full explanation
Question 0Teams P and Q are involved in a game of football. What is the probability that the game ends in a draw?A.2/3B.1/2C.1/3D.1/4E.Objective Show full explanation
Question 0Given distribution of color beads: blue, black, yellow, white and brown with frequencies 1, 2, 3, 4, and 5 respectively. Find the probability that a bead picked at random will be blue or white.A.7/15B.2/5C.1/3D.1/15E.Objective Show full explanation
Question 0Find the number of ways of selecting 8 subjects from 12 subjects for an examination.A.490B.495C.496D.498E.Objective Show full explanation
Question 0Find the range of these fractions: 1/6, 1/3, 3/2, 2/3, 8/9 and 4/3.A.3/4B.5/6C.7/6D.4/3E.Objective Show full explanation
Question 0Team P and Q are involved in a game of football.What is the probability that the game ends in a draw?A.2/3B.1/2C.1/3D.1/4E.Objective Show full explanation
Question 0The distribution of colours of beads in a bowl is given above. What is the probability that a bead selected at random will be blue or white?A.7/15B.2/5C.1/3D.1/15E.Objective Show full explanation
Question 0Find the number of ways of selecting 8 subjects from 12 subjects for an examinationA.490B.495C.496D.498E.Objective Show full explanation
Question 0Find the range of 1/6, 1/3, 3/2, 2/3, 8/9 and 4/3A.3/4B.5/6C.7/6D.4/3E.Objective Show full explanation
Question 0Triangle SPT is the solution of the linear inequalitiesA.2y - x - 2 ≤ 0, y + 2x + 2 ≥ 0, -2 ≤ x ≤ - 1B.-2 ≤ x ≤ 2, y ≥ 0, y + 2x + 2 ≤ 0, x ≤ 0C.2y - x - 2 ≤ 0, y + 2x + 2 ≤ 0, y ≥ 0, x ≤ 0D.2y - x - 2 ≥ 0, y + 2x + 2 ≤ 0, x ≤ 0E.Objective Show full explanation
Question 0⊗klmklmklmklmklm The identity element with respect to the multiplication shown in the table above isA.oB.mC.lD.kE.Objective Show full explanation