Question 1choose the correct or best answer to the following: (1.28x10⊃4) (6.4x10⊃2) equals A.2 x 10-5B.2 x 10-1C.2 x 100D.2x101 Objective Show full explanation
Question 2A father in now three times as old as his son. Twelve years ago, he was six times as old as his son. How old are the son and the father? A.20 and 60B.100 and 150C.45 and 65D.35 and 75 Objective Show full explanation
Question 3Evaluate and correct to 4 decimal places: 827.51 x 0.015 A.8.8415B.12.4127C.124.1265D.12.4120 Objective Show full explanation
Question 4A solid cylinder of radius 3cm has a total surface area of 36πcm2. Find its height A.2cmB.3cmC.4cmD.5cmObjective Show full explanation
Question 6Find the gradient of the line joining the points P(5, 6) and Q(3, 3).A.1/2B.3/2C.2D.3Objective Show full explanation
Question 7Find the number of ways the letters of the word COMMITTEE can be permutated A.9!B.9! / (2!2!2!) C.9! / 2!2!D.9!/2!Objective Show full explanation
Question 8Find the range of 2, 6.8, 10, 12, 25.3, 4 and 32. A.27B.30C.22D.24Objective Show full explanation
Question 9Each of the interior angles of a regular polygon is 140°. How many sides has the polygon? A.9B.8C.7D.5Objective Show full explanation
Question 10The mean of 10 positive numbers is 16. When another number is added, the mean becomes 18. Find the eleventh number. A.3B.16C.18D.38Objective Show full explanation