CSS Primary Standard “Mathematics” 251 (ii) Which type of food item is the smallest in number? (iii) Without calculation find the ratio of juices and poultry. Ans: 60 : 120 1 : 2 Q.5 The means of transportation of different people to go to office are shown in pie graph. Read the graph and answer the following questions. (i) In how many sectors pie graph has been divided. (ii) Which mean is mostly used for going to office. (iii) Which mean is less used for going to office. (iv) Without calculation find the ratio between means of bus and van. Ans: (i) Pie graph is divided into four sectors. (ii) Bus is mostly used for going offices. (iii) Van is less used for going offices 120 : 60 2 : 1 Q.6 The pie chart shows how a box of 40 chocolates is shared among 3 sisters. Find out how many chocolates each one gets. Ans: Share of Shazia = 40 90° 360° = 40 1 4 = 10 chocolates Share of Anoral = 40 135° 360° = 15 chocolates
CSS Primary Standard “Mathematics” 252 Share of Alishaba = 40 135° 360° = 15 chocolates Q.7 the cost of construction of a house is given by the pie chart. Calculate the angle of each sector. Angle of steels sector = 40 90° 360° = 54° Angle of Timber’s sector = 360 10 100 = 36° Angle of labour’s sector = 360 25 100° = 90° Angle of cement’s sector = 360 20 100 = 54° Angle of supervision = 360 15 100 = 54°