Question 1Convert 2710 to another number in base threeA.10013B.10103C.11003D.10003Objective Show full explanation
Question 2In a class of 46 students, 22 play football and 26 play volleyball. If 3 students play both games, how many play neither?A.1B.2C.3D.4Objective Show full explanation
Question 4An article bought for N8.75 was sold for N46.65. What is the percentage loss?A.12%B.15%C.21%D.24%Objective Show full explanation
Question 5If log x = 2.3675 and log y = 0.9750, find x + y, correct to three significant figure.A.1.18B.2.31C.9.03D.9.44Objective Show full explanation
Question 6The difference between the length and width of a rectangle is 6cm and the area is 135cm2. What is the length?A.25cmB.18cmC.15cmD.24cmObjective Show full explanation
Question 7A baking recipe calls for 2.5kg of sugar and 4.5kg of flour. With this recipe some cakes were baked using 24.5kg of a mixture of sugar and flour. How much sugar was used?A.12.25kgB.6.5kgC.8.75kgD.15.75kgObjective Show full explanation
Question 8Factorize the following expression:2x2 + x - 15A.(2x + 5)(x - 3)B.(2x - 5)(x + 3)C.(2x - 5)(x - 3)D.(2x - 3)(x + 5)Objective Show full explanation
Question 10The interior angles of a pentagon are (2x + 5)°, (x + 20)°, x°, (3x - 20)° and (x + 15)°. Find the value of xA.80°B.70°C.65°D.40°Objective Show full explanation
Question 11A bag contains 5 black, 4 white and x red marbles. If the probability of pucking a red marble is 2/5 find the value of xA.8B.10C.4D.6Objective Show full explanation
Question 12Make c the subject of the equation a(b + c) + (5/d) - 2 = 0A.c = (2d - 5 - b)/adB.c = (5 - 2d - b)/adC.c = (5 - 2d - b)/adD.c = (2d - 5 -abd)/adObjective Show full explanation
Question 13A man and his wife went to buy an article costing N400. The woman had 10% of the cost and the man 40% of the remainder. How much did they have altogether?sA.N216B.N200C.N184D.N144Objective Show full explanation
Question 14What factor is common to all the expressions x2 - x, 2x2 + x - 1 and x2 - 17A.xB.x - 1C.x + 1D.no common factorObjective Show full explanation
Question 15For what value of the expression (y + 2)(y2 - 3y - 10) of y is the equation undefined?A.y = 0B.y = 2C.y = 3D.y = 5Objective Show full explanation
Question 16If x2 - 6x + n = 0 has coincident roots, the value of n isA.9B.-9C.3D.4Objective Show full explanation
Question 17Two perfect dice were thrown together. Determine the probability of obtaining a total score of 8A.1/12B.5/36C.1/6D.7/36Objective Show full explanation
Question 18What are the integral values of x which satisfy the inequality -1 < 3 - 2x = 5?A.2, 1, 0, -1B.-1, 0, 1, 2C.-1, 0, 1D.0, 1, 2Objective Show full explanation
Question 19Find all real numbers x which satisfies the inequality 1/3(x + 1) - 1 > 1/5(x + 4)A.xB.x < 11C.x > 6D.x > 11Objective Show full explanation
Question 20If the 39th term of an arithmetic progression is 141, what is the first term if the common difference is 2?A.65B.141C.39D.None of the aboveObjective Show full explanation
Question 21The 2nd and 5th terms of a geometric progression are 24 and 81 respectively. Find the common ratio.A.2/3B.3/2C.5/2D.7/2Objective Show full explanation
Question 22A binary operation * on the set of ratonal numbers is defined as x * y = (x2 - y2)/2xy. Find -5 * 3.A.8/15B.-17/15C.17/15D.-8/15Objective Show full explanation
Question 233 girls share a number of apples in the ratio 5:3:2. If the highest share is 40 apples, find the smallest share.A.36B.24C.16D.38Objective Show full explanation
Question 24A final examination requires that a student answer 4 out of 6 questions. In how many ways can this be done?A.15B.20C.30D.45Objective Show full explanation
Question 25Find the area of the figure bounded by the given pair of curves y = x2 - x + 3 and y = 3A.17/6 units (sq)B.7/6 units (sq)C.5/6 units (sq)D.1/6 units (sq)Objective Show full explanation
Question 26Find the coordinates of the midpoint of the line joining (3, 4) and (-1, 10)A.(1, 3)B.(1, 2)C.(2, 3)D.(3, 2)Objective Show full explanation
Question 27Two lines PQ and ST intersect at 75°. The locus of points lies on theA.perpendicular bisector of PQB.perpendicular bisector of STC.bisector of the angles between line PQ and STD.bisector of the angles between PT and QSObjective Show full explanation
Question 28The weight Wkg of metal bar varies jointly as its length L metres and the square of its diameter d meters. If W = 140, when d = 42⁄3 and L = 54, find d in terms of W and LA.√(42W⁄5L)B.√(5L⁄42W)C.42W⁄5LD.5L⁄42WObjective Show full explanation
Question 29The perimeter of a sector of a circle of radius 21cm is 64cm. Find the angle of the sector. [Take π = 22/7]A.70°B.60°C.55°D.42°Objective Show full explanation
Question 30From the top of a building 10m high, the angle of depression of a stone lying on the horizontal ground is 69°. Calculate, correct to 1 decimal place, the distance of the stone from the foot of the building.A.3.6cmB.3.8cmC.6.0cmD.9.3cmObjective Show full explanation
Question 31Find the total area of the surface of a solid cylinder base radius is 4cm and height is 5cmA.56π cm2B.72π cm2C.96π cm2D.192π cm2Objective Show full explanation
Question 32Find the turning point of the functions 2x3 + 3x2 - 36x + 10A.(2, 3)B.(-2, 3)C.(2, -3)D.(-2, 3)Objective Show full explanation
Question 33Find the gradient of the line passing through the point (-2, 0) and (0, 4)A.2B.-4C.-2D.4Objective Show full explanation
Question 34At what value of x is the function y = x2 - 2x - 3 minimum?A.1B.-1C.-4D.4Objective Show full explanation
Question 35What is the point of intersection between the line y = 3x + 2 and 2x + 3y = 17?A.P(1, 5)B.P(5, 1)C.P(2, 3)D.P(2, 17)Objective Show full explanation
Question 36A ladder 9m long,leans against a vertical wall making an angle of 64° with the horizontal ground. Calculate, correct one decimal place, how far the foot of the ladder is from the wall.A.4.0mB.0.8mC.7.1mD.8.1Objective Show full explanation
Question 38Without using tables find the value of cos 105°A.√3/4(1 - √3)B.√2/4(1 - √5)C.√2/4(1 - √3)D.√3Objective Show full explanation
Question 39If sin θ = 1/3, and θ is acute, find the value of tan θA.√3/2B.√5/4C.√7/4D.√2/4Objective Show full explanation
Question 40The maximum value of the function f(x) = 2 + x - x2 isA.9/4B.7/4C.3/2D.1/2Objective Show full explanation
Question 41Find the derivative of (2 + 3x)(1 - x) with respect to x.A.6x - 1B.1 - 6xC.6D.-3Objective Show full explanation
Question 42Find the derivative of the function y = 2x2(2x - 1) at the point x = -1A.-6B.-4C.16D.18Objective Show full explanation
Question 45The value of limx --> 0 1 - cosx / 1 - sinx isA.1B.0C.-1D.0.5Objective Show full explanation
Question 46The variance of a given distribution is 25. What is the standard deviation?A.125B.75C.25D.5Objective Show full explanation
Question 47Find the mean deviation of 1, 2, 3, and 4A.1.0B.1.5C.2.0D.2.5Objective Show full explanation
Question 48If 5, 8, 6 and 2 occur with frequencies 3, 2, 4 and 1 respectively. Find the product of the modal and median numberA.36B.48C.30D.40Objective Show full explanation
Question 49In how many ways can 3 boys and girls sit in the row, if just the girls are to sit together?A.120B.24C.48D.36Objective Show full explanation
Question 50The probability of an event P is 3/4 while that of another event Q is 1/6. If the probability of both P and Q is 1/2. What is the probability of either P or Q?A.1/96B.1/8C.5/6D.11/12Objective Show full explanation