Question 2A father decided to give 20% of his monthly income to his three children as their monthly allowance. The eldest child got 45% of the allowance and the youngest child got 25%. How much was the father's monthly income if the second child got N3000?A.N33 000B.N45 000C.N50 000D.N60 000Objective Show full explanation
Question 3Divide 6x² - 13x + 5 by 2x - 1A.3x + 5B.3x - 5C.5x - 3D.5x + 3Objective Show full explanation
Question 4A polynomial in x whose zeros are 2, -1 and 3 isA.x³ + 7x + 6B.x³ + 7x - 6C.x³ - 7x + 6D.x³ - 7x - 6Objective Show full explanation
Question 5If x varies inversely as y and y varies directly as z, what is the relationship between x and z?A.x ∝ zB.x ∝ 1/zC.x ∝ z²D.x ∝ 1/z²Objective Show full explanation
Question 6Water flows out of a pipe at a rate of 40πcm3 per second into an empty cylindrical container of base radius 4cm. Find the height of water in the container after 4 seconds.A.10cmB.14cmC.16cmD.20cmObjective Show full explanation
Question 7The time taken to do a piece of work is inversely proportional to the number of men employed. If it takes 30 men to do a piece of work in 6 days, how many men are required to do the work in 4 days?A.20B.35C.45D.60Objective Show full explanation
Question 8If sin θ = ${-1/2}$ for 0 < θ θ 360°, the value of θ isA.30° and 150°B.150° and 210°C.210° and 330°D.150° and 330°Objective Show full explanation
Question 9If y = (1 - 2x)³, find the value of ${{dy}/{dx}}$ at x = -1A.57B.27C.-6D.-54Objective Show full explanation
Question 10Find the derivate of y = sin (2x³ + 3x - 4 )A.cos (2x³ + 3x - 4)B.-cos (2x&Sup3; + 3x - 4)C.-(6x² + 3)cos (2x³ + x - 4)D.(6x² + 3)cos (2x³ + 3x - 4)Objective Show full explanation
Question 12How many possible ways are there of seating seven people P, Q, R, S, T, U and V at a circular table?A.360B.720C.2520D.5040Objective Show full explanation
Question 13In triangle XYZ, ∠XYZ = 15°, ∠XZY = 45° and |XY| = 7cm. Find |YZ|.A.7/2√6cmB.7cmC.14√2cmD.7√2cmObjective Show full explanation
Question 14Find p, q for which ${(\table 2p,8;3,-5q)(\table 1;2) = (\table 24;-17)}$A.-4, -2B.-4, 2C.4, -2D.4, 2Objective Show full explanation
Question 15If p varies inversely as the cube of q and q varies directly as the square of r, what is the relationship between p and r?A.p varies directly as r3B.p varies directly as r6C.p varies inversely as 6√rD.p varies inversely as r6Objective Show full explanation