Question 0If 5, 8, 6 and 2 occur with frequencies 3, 2, 4 and 1 respectively. Find the product of the modal and the median numberA.36B.48C.30D.40E.Objective Show full explanation
Question 0In a basket, there are 6 grapes, 11 bananas and 13 oranges. If one fruit is chosen at random. What is the probability that the fruit is either a grape or a bananaA.6/30B.5/30C.17/30D.11/30E.Objective Show full explanation
Question 0The histogram above represents the weights of students who travelled out to their school for an examination. How many people made the trip.A.78B.38C.29D.69E.Objective Show full explanation
Question 0A senatorial candidate had planned to visit seven cities prior to a primary election. However, he could only visit four of the cities. How many different itineraries could be considered?A.640B.840C.520D.920E.Objective Show full explanation
Question 0The pie chart above illustrate the amount of private time a student spends in a week studying various subjects. Find the value of kA.90oB.60oC.30oD.40oE.Objective Show full explanation
Question 0The table above shows the number of pupils in each age group in a class. What is the probability that a pupil chosen at random is at least 1 years old?A.27/40B.17/20C.3/30D.33/40E.Objective Show full explanation
Question 0What is the mean deviation of 3, 5, 8, 11, 12 and 21?A.4.7B.60C.3.7D.10E.Objective Show full explanation
Question 0The table above gives the frequency distribution of marks obtained by a group of students in a test. If the total mark scored is 200, calculate the value of yA.15B.13C.11D.8E.Objective Show full explanation
Question 0In how many ways can 6 subjects be selected from 10 subjects for an examinationA.218B.216C.215D.210E.Objective Show full explanation
Question 0Integrate \(\frac{x^2 -\sqrt{x}}{x}\) with respect to xA.\(\frac{x^2}{2}-2\sqrt{x}+K\)B.\(\frac{2(x^2 - x)}{3x}+K\)C.\(\frac{x^2}{2}-\sqrt{x}+K\)D.\(\frac{(x^2 - x)}{3x}+K\)E.Objective Show full explanation
Question 0If y = x cos x, find dy/dxA.sin x - x cos xB.sin x + x cos xC.cos x + x sin xD.cos x - x sin xE.Objective Show full explanation
Question 0Find the value of x for which the function f(x) = 2x3 - x2 - 4x + 4 has a maximum valueA.2/3B.1C.- 2/3D.- 1E.Objective Show full explanation
Question 0Determine the value of \(\int_0 ^{\frac{\pi}{2} }(-2cos x)dx\)A.-2B.-1/2C.-3D.-3/2E.Objective Show full explanation
Question 0A binary operation ⊕ on real numbers is defined by x⊕y = xy + x + y for any two real numbers x and y. The value of (-3/4)⊕6 isA.3/4B.-9/2C.45/4D.-3/4E.Objective Show full explanation
Question 0The graph above is represented byA.y = x3 - 3x - 2B.y = x3 + 2x2 - x - 2C.y = x3 - 4x2 + 5x - 2D.y = x3 - 4x + 2E.Objective Show full explanation
Question 0Make L the subjects of the formula if \(\sqrt{\frac{42w}{5l}}\)A.\(\sqrt{\frac{42w}{5d}}\)B.\(\frac{42W}{5d^2}\)C.\(\frac{42}{5dW}\)D.\(\frac{1}{d}\sqrt{\frac{42w}{5}}\)E.Objective Show full explanation
Question 0The solution of the quadratic inequality (x3 + x - 12) ≥ 0 isA.x ≥ -3 or x ≤ 4B.x ≥ 3 or x ≥ -4C.x ≤ 3 or x v -4D.x ≥ 3 or x ≤ -4E.Objective Show full explanation
Question 0Factorize 2t2 + t - 15A.(2t - 3)(t + 5)B.(t + 3)(2t - 5)C.(t + 3)(t - 5)D.(2t + 3)(t - 5)E.Objective Show full explanation
Question 0Solve the inequalities -3(x - 2) < -2(x + 3)A.x > 12B.x < 12C.x > -12D.x < - 12E.Objective Show full explanation
Question 0W ∝ L2 and W = 6 when L = 4. If L = √17 find WA.67/8B.65/8C.63/8D.61/8E.Objective Show full explanation
Question 0A binary operation Δ is defined by aΔb = a + b + 1 for any numbers a and b. Find the inverse of the real number 7 under the operation Δ, if the identity element is -1A.-7B.-9C.5D.9E.Objective Show full explanation
Question 0The nth term of the sequence 3/2, 3, 7, 16, 35, 74 ..... isA.5 . 2n-2 - nB.5 . 2n-2 - (n+1) / 2C.3 . 2n-2D.3/2 nE.Objective Show full explanation
Question 0Find the sum to infinity of the series \(2+\frac{3}{2}+\frac{9}{8}+\frac{27}{32}+......\)A.1B.2C.8D.4E.Objective Show full explanation
Question 0Find y, if \(\sqrt{12}-\sqrt{147}+y\sqrt{3} = 0\)A.5B.1C.7D.3E.Objective Show full explanation
Question 0Evaluate \(\frac{(05652 - 04375)^2}{0.04}\) correct to three significant figuresA.3.11B.3.13C.0.313D.3.12E.Objective Show full explanation
Question 0Find the value of x for which 2(32x-1) = 162A.5/2B.3/2C.2/5D.1/2E.Objective Show full explanation
Question 0Simplify \(\frac{3}{5} \div \left(\frac{2}{7} \times \frac{4}{3} \div \frac{4}{9}\right)\)A.\(\frac{4}{5}\)B.\(\frac{7}{10}\)C.\(\frac{6}{6}\)D.\(\frac{21}{6}\)E.Objective Show full explanation
Question 0If log102 = x, express log1012.5 in terms of xA.2(1 + x)B.2 + 3xC.2(1 - x)D.2 - 3xE.Objective Show full explanation
Question 0A man made a profit of 5% when he sold an article for N60,000.00. How much would he have sell the article to make a profit of 26%A.N68,000B.N72,000C.N65,000D.N70,000E.Objective Show full explanation
Question 0Given P = {1, 3, 5, 7, 9, 11} and Q = {2, 4, 6, 8, 1, 12}. Determine the relationship between P and QA.P∩Q = ∅B.P ⊂ QC.Q⊂PD.P = QE.Objective Show full explanation
Question 0If X = {all the perfect squares less than 40} Y = {all the odd numbers fro, 1 to 15}. Find X ∩ Y.A.{3, 9}B.{9}C.{9, 25}D.{1, 9}E.Objective Show full explanation
Question 0Calculate the length of an arc of a circle diameter 14 cm, which substends an angle of 90o at the center of the circleA.7π/2 cmB.7π cmC.14π cmD.7π/4 cmE.Objective Show full explanation
Question 0If the lines 3y = 4x - 1 and qy = x + 3 are parallel to each other, the value of q isA.-4/3B.-3/4C.4/3D.3/4E.Objective Show full explanation
Question 0In the parallelogram PQRS above, find angle SQRA.100oB.80oC.50oD.30oE.Objective Show full explanation
Question 0The volume of a hemispherical bowl is \(718\frac{2}{3}\). Find its radius .A.4.0 cmB.5.6 cmC.7.0 cmD.3.8 cmE.Objective Show full explanation
Question 0A particle P moves between points S and T such that angles SPT is always constant of ST constant. Find the locus off PA.It is a semi circle with ST as diameterB.It is a perpendicular bisector of StC.It is a quadrant of a circle with ST as diameterD.It is a straight line perpendicular to STE.Objective Show full explanation
Question 0If the lines 2y - kx + 2 = 0 and y + x - k/2 = 0 Intersect at (1, -2), find the value of kA.-4B.-3C.-2D.-1E.Objective Show full explanation
Question 0A man 40 m from the foot of a tower observes the angle of elevation of the tower to be 30o. Determine the height of the tower.A.\(\frac{40\sqrt{3}}{3}m\)B.20 mC.40√3 mD.40 mE.Objective Show full explanation
Question 0Find the locus of point equidistant from two straight lines y - 5 = 0 and y - 3 = 0A.y - 2 = 0B.y - 4 = 0C.y - 1 = 0D.y - 3 = 0E.Objective Show full explanation
Question 0What is the value of k if the mid-point of the line joining (1 - k, - 4) and (2, k + 1) is (-k , k)?A.-3B.-1C.-4D.-2E.Objective Show full explanation
Question 0Find the size of each exterior angle of a regular octagonA.51oB.45oC.40oD.36oE.Objective Show full explanation
Question 0Find the value of \(\frac{tan 60^o - tan 30^o}{tan 60^o + tan 30^o}\)A.\(\frac{4}{\sqrt{3}}\)B.\(\frac{2}{\sqrt{3}}\)C.1D.\(\frac{1}{2}\)E.Objective Show full explanation
Question 0The area of a square is 144 sqcm. Find the length of the diagonal.A.13 cmB.12√2 cmC.12 cmD.11√3 cmE.Objective Show full explanation
Question 0if X = {all perfect squares less than 40} and y = {all odd numbers from 1 to 15}, find X ∩ YA.{9, 25}B.{3, 9}C.{1, 9}D.{9}E.Objective Show full explanation
Question 0If y = (1 + x)2, find \(\frac{dy}{dx}\)A.x - 1B.2 + 2xC.1 + 2xD.2x - 1E.Objective Show full explanation
Question 0If y = x cosx, find \(\frac{dy}{dx}\).A.cos x - x sinxB.sinx - x cosxC.sin x + x cosxD.cosx + x sin xE.Objective Show full explanation
Question 0Find the size of each exterior angle of a regular octagon.A.45oB.40oC.51oD.36oE.Objective Show full explanation
Question 0Integrate \(\frac{x^2 - \sqrt{x}}{x}\) with respect to xA.\(\frac{x^2 - \sqrt{x}}{x^2}\) + kB.\(\frac{x^2 }{2}\) - \(\sqrt{x}\) + kC.\(\frac{2(x^2 - x)}{3x}\) + kD.\(\frac{x^2}{2}\) - 2\(\sqrt{x}\) + kE.Objective Show full explanation