Question 0Let P = {1, 2, u, v, w, x}; Q = {2, 3, u, v, w, 5, 6, y} and R = {2, 3, 4, v, x, y}. Determine (P-Q) ∩ RA.{1, x}B.{x y}C.{x}D.ɸE.Objective Show full explanation
Question 0If the population of a town was 240,000 in January 1998 and it increased by 2% each year, what would be the population of the town in January, 2000?A.480,000B.249,696C.249,600D.244,800E.Objective Show full explanation
Question 0If \(\frac{(2\sqrt{3}-\sqrt{2})}{(\sqrt{3}+2\sqrt{2})} = m +n\sqrt{6}\), find the values of m and n respectively.A.1, -2B.-2, 1C.\(\frac{-2}{5}\), 1D.2, 3/5E.Objective Show full explanation
Question 0In a youth club with 94 members, 60 like modern music, and 50 like traditional music. The number of members who like both traditional and modern music is three times those who do not like any type of music. How many members like only one type of music?A.8B.24C.62D.86E.Objective Show full explanation
Question 0Evaluate (2.813 x 10-3 x 1.063) (5.637 x 10-2)A.0.056B.0.055C.0.054D.0.54E.Objective Show full explanation
Question 0A man wishes to keep his money in a savings deposit at 25% compound interest so that after three years he can buy a car for N150,000. How much does he need to deposit?A.N112,000.50B.N96,000.00C.N85,714.28D.N76,800.00E.Objective Show full explanation
Question 0If P3446 - 23P26 = 2PP26, find the value of the digit P.A.2B.3C.4D.5E.Objective Show full explanation
Question 0A binary operation * is defined by a*b = ab. If a*2 = 2-a, find the possible values of a.A.1, -1B.1, 2C.2, -2D.1, -2E.Objective Show full explanation
Question 0The 3rd term of an A.P is 4x - 2y and the 9th term is 10x - 8y. Find the common difference.A.19x - 17yB.8x - 4yC.x - yD.2xE.Objective Show full explanation
Question 0Find the inverse of p under the binary operation * defined by p*q = p + q - pq, where p and q are real numbers and zero is the identityA.pB.p -1C.p/(p-1)D.p/(p+1)E.Objective Show full explanation
Question 0Evaluate (1/2 - 1/4 - 1/8 - 1/16 + ...) - 1A.2/3B.zeroC.-2/3D.-1E.Objective Show full explanation
Question 0if (x - 1), (x + 1) and (x - 2) are factors of the polynomial ax3 + bx2 + cx - 1, find a, b, c in that order.A.-1/2, 1., 1/2B.1/2, 1, 1/2C.1/2, 1, -1/2D.1/2, -1, 1/2E.Objective Show full explanation
Question 0A trader realizes 10x - x2 naira profit from the sale of x bags on corn. How many bags will give him the desired profit?A.4B.5C.6D.7E.Objective Show full explanation
Question 0Solve the inequality 2 - x > x2.A.x < -2 or x > 1B.x > 2 or x< -1C.-1 < x < 2D.-2 < x < 1E.Objective Show full explanation
Question 0If α and β are the roots of the equation 3x2 + 5x - 2 = 0, find the value of 1/α + 1/βA.-5/3B.-2/3C.1/2D.5/2E.Objective Show full explanation
Question 0A frustrum of pyramid with square base has its upper and lower sections as squares of sizes 2m and 5m respectively and the distance between them 6m. Find the height of the pyramid from which the frustrum was obtained.A.8.0 mB.8.4 mC.9.0 mD.10.0 mE.Objective Show full explanation
Question 0P is a point on one side of the straight line UV and P moves in the same direction as UV. If the straight line ST is on the locus of P and angle VUS = 60°, find angle UST.A.310°B.130°C.80°D.50°E.Objective Show full explanation
Question 0A ship sails a distance of 50km in the direction S50°E and then sails a distance of 50km in the direction N40°E. FInd the bearing of the ship from the original position.A.S90°EB.N40°EC.S95°ED.N85°EE.Objective Show full explanation
Question 0An equilateral triangle of side √3cm is inscribed in a circle. Find the radius of the circle.A.2/3 cmB.2 cmC.1 cmD.3 cmE.Objective Show full explanation
Question 03y = 4x - 1 and Ky = x + 3 are equations of two straight lines. If the two lines are perpendicular to each other, find K.A.-4/3B.-3/4C.3/4D.4/3E.Objective Show full explanation
Question 0if P and Q are fixed points and X is a point which moves so that XP = XQ, the locus of X isA.A straight lineB.a circleC.the bisector of angle PXQD.the perpendicular bisector of PQE.Objective Show full explanation
Question 0In a regular polygon, each interior angle doubles its corresponding exterior angle. Find the number of sides of the polygon.A.8B.6C.4D.3E.Objective Show full explanation
Question 0A predator moves in a circle of radius √2 centre (0,0), while a prey moves along the line y = x. If 0 \(\leq\) x \(\leq\) 2, at which point(s) will they meet?A.(1,1) onlyB.(1,1) and (1,2)C.(0,0) and (1,1)D.(√2,√2) onlyE.Objective Show full explanation
Question 0Find the value of \(\int^{\pi}_{0}\frac{cos^{2}\theta-1}{sin^{2}\theta}d\theta\)A.πB.π/2C.-π/2D.-πE.Objective Show full explanation
Question 0If y = 2x - sin2x, find dy/dx when x = π/4A.πB.-πC.π/2D.-π/2E.Objective Show full explanation
Question 0A bowl is designed by revolving completely the area enclosed by y = x2 - 1, y = 3 and x ≥ 0 around the axis. What is the volume of this bowl?A.7π cubic unitsB.15π/2 cubic unitsC.8π cubic unitsD.17π/2 cubic unitsE.Objective Show full explanation
Question 0If the volume of a hemisphere is increasing at a steady rate of 18π m/s, at what rate is its radius changing when its is 6m?A.2.30m/sB.2.00 m/sC.0.25 m/sD.0.20 m/sE.Objective Show full explanation
Question 0X and Y are two events. The probability of X or Y is 0.7 and that of X is 0.4. If X and Y are independent, find the probability of Y.A.0.30B.0.50C.0.57D.1.80E.Objective Show full explanation
Question 0If the mean of the numbers 0, (x+2), (3x+6), and (4x+8) is 4, find their mean deviation.A.zeroB.2C.3D.4E.Objective Show full explanation
Question 0In how many ways can the word MATHEMATICS be arranged?A.11!/(9! 2!)B.11!/(9! 2! 2!)C.11!/(2! 2! 2!)D.11!/(2! 2!)E.Objective Show full explanation
Question 0Given that the various faces of a fair dice 1, 2, 3, 4, 5, 6 appeared 30, 43, 54, 40, 41, 32 times respectively in a single toss. Picture the figures as being represented in a simple table with number (X) against frequency (f). If a pie chart is used to depict the data, the angle corresponding to 4 is?A.10°B.16°C.40°D.60°E.Objective Show full explanation
Question 0If U = {x : x is an integer and 1 \(\leq\) x \(\leq\) 20 E1 = {x : x is a multiple of 3} E2 = {x : x is a multiple of 4} and an integer is picked at random from U, find the probability that it is not in E2A.3/4B.3/10C.1/4D.1/20E.Objective Show full explanation
Question 0Find the sum of the range and the mode of the set of numbers 10, 9, 10, 9, 8, 7, 7, 10, 8, 10, 8, 4, 6, 9, 10, 9, 10, 9, 7, 10, 6, 5A.16B.14C.12D.10E.Objective Show full explanation
Question 0In how many ways can a delegation of 3 be chosen from among 5 men and 3 women, if at least one man and at least one woman must be included?A.15B.28C.30D.45E.Objective Show full explanation
Question 0A function f(x) passes through the origin and its first derivative is 3x + 2. What is f(x)?A.y = (3x2/)2 + 2xB.y = (3x2)/2 + xC.y = 3x2 + (x/2)D.y = 3x2 +2xE.Objective Show full explanation
Question 0The expression ax2 + bx + c equals 5 at x = 1. If its derivative is 2x + 1, what are the values of a, b, c respectively?A.1, 3, 1B.1, 2, 1C.2, 1, 1D.1, 1, 3E.Objective Show full explanation
Question 0In the diagram above, if ∠RPS = 50o, ∠RPQ = 30o and PQ = QR, find the value of ∠PRS.A.80oB.70oC.60oD.50oE.Objective Show full explanation
Question 0In the diagram above, EFGH is a circle center O. Fh is a diameter and GE is a chord which meets FH at right angle at the point N. If NH = 8cm and EG = 24cm, calculate FH.A.16 cmB.20 cmC.26 cmD.32 cmE.Objective Show full explanation
Question 0In the diagram, If < RPS = 50o, < RPQ = 30o and pq = QR, Find the value of < prsA.50oB.60oC.70oD.80oE.Objective Show full explanation
Question 0In the diagram, EFGH is a circle centre O. FH is a diameter and GE is a chord which meets FH at right angle at the point N. If NH = 8cm and EG = 24cm, calculate FHA.32cmB.26cmC.20cmD.16cmE.Objective Show full explanation
Question 0If the diagram is the graph of y = x2, the shaded area isA.64 square unitsB.\(\frac{126}{4}\) square unitsC.32 square unitsD.\(\frac{64}{3}\) square unitsE.Objective Show full explanation
Question 0The cumulative frequency curve represents the ages of ages of students in a school. What age group do 70% of the students belongs?A.17.5 - 20.5B.16.5 - 19.5C.15.5 - 19.5D.15.5 - 18.5E.Objective Show full explanation