SCIENCE -difference b/n magnet n magnetic field. -velocity time graph -difference b/n density n relative density. -isotopes -digestion of a ruminant. ECONS -population -why is de short run marginal cost curve usualy U- shaped -national income n importance -difference b/n between price n comodity. -monopoly. SOCIAL -law n order -election -democracy. (frm achimota. Take it serious coz all their questions for the home econs students came life n coloured when they wrote their planning exams . Question 5 A sector of angle 135° is removed from a thin circular metal sheet of radius 40cm. It is then folded with the straight edges coinciding to form a right circular cone. Calculate the: base radius of the cone, correct to two decimal places greatest volume of liquid which the cone can hold, leaving your answer correct to the nearest cm3. (Take p = 22/7) Question 6 (a) By how much is 110002 greater than or les than 1112 x 112? (b) A shopkeeper has in stock 20 televisions set percent. He sells 18 of them at a profit of 15 percent and the remaining two at a loss of 5 percentage. Find his profit on the 20 sets.. Question 3 The marks scored by 50 students in a Geography examination are as follows: 60 50 40 67 53 73 37 55 62 43 44 69 39 32 45 58 48 67 39 51 46 59 40 52 61 48 23 60 59 47 65 58 74 47 40 59 68 51 50 50 71 51 26 36 38 70 46 40 51 42 (a) Using class intervals 21 – 30, 31 – 40…, prepare a frequency distribution table. (b) Calculate the mean mark of the distribution (c) What percentage of the students scored more than 60% Question 4 (a) A circle is inscribed in a square. If the sum of the perimeter of the square and the circumference of the circle is 100 cm, calculate the radius of the circle. [Take p = 22/7 (b) A rope 60cm long is made to form a rectangle. If the length is 4 times its breadth, calculate, correct to one decimal place, the (i) length; (ii) diagonal of the rectangle Question 5 (a)How many numbers between 75 and 500 are divisible by 7? (b) The 8th term of an Arithmetic progression (A.P.) is 5 times the third term while the 7th term is 9 greater than the 4th term. Write the first five terms of the A.P Question 6 (a)Copy and complete the table of values for y = sin x + 2 cos x, correct to one decimal place. X 0° 30º 60° 90° 120° 150° 180° 210° 240 Y 2.2 -1.2 -2.0 -1.9 (b) Using a scale of 2 cm to 30° on the x – axis and 2 cm to 0.5 units on the y-axis, draw the graph of y = sin x + 2cos x for 0° ≤ x ≤ 240° (c) Use your graph to solve the equation: (i) sin x + 2cos x = 0; (ii) sin x = 2.1 – 2cos x (d) From the graph, find y when x = 171°..?. 3 hours Question 3 The marks scored by 50 students in a Geography examination are as follows: 60 50 40 67 53 73 37 55 62 43 44 69 39 32 45 58 48 67 39 51 46 59 40 52 61 48 23 60 59 47 65 58 74 47 40 59 68 51 50 50 71 51 26 36 38 70 46 40 51 42 (a) Using class intervals 21 – 30, 31 – 40…, prepare a frequency distribution table. (b) Calculate the mean mark of the distribution (c) What percentage of the students scored more than 60% Question 4 (a) A circle is inscribed in a square. If the sum of the perimeter of the square and the circumference of the circle is 100 cm, calculate the radius of the circle. [Take p = 22/7 (b) A rope 60cm long is made to form a rectangle. If the length is 4 times its breadth, calculate, correct to one decimal place, the (i) length; (ii) diagonal of the rectangle Question 5 (a)How many numbers between 75 and 500 are divisible by 7? (b) The 8th term of an Arithmetic progression (A.P.) is 5 times the third term while the 7th term is 9 greater than the 4th term. Write the first five terms of the A.P Question 6 (a)Copy and complete the table of values for y = sin x + 2 cos x, correct to one decimal place. X 0° 30º 60° 90° 120° 150° 180° 210° 240 Y 2.2 -1.2 -2.0 -1.9 (b) Using a scale of 2 cm to 30° on the x – axis and 2 cm to 0.5 units on the y-axis, draw the graph of y = sin x + 2cos x for 0° ≤ x ≤ 240° (c) Use your graph to solve the equation: (i) sin x + 2cos x = 0; (ii) sin x = 2.1 – 2cos x (d) From the graph, find y when x = 171°..?.
Posted on: Tue, 25 Mar 2014 16:33:17 +0000
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