On a certain day, 125 people, each buying one newspaper, were asked which newspaper they had bought. The results of the survey are shown in the table below. Newspaper The Times The Telegraph The Express Some other paper Number bought 10 25 40 50 Calculate the angles of the sectors of a pie chart of radius 5 cm which would illustrate these data. The following day a similar survey was carried out and the radius of the pie chart necessary to compare the new set of data with the previous set was 6 cm. Calculate the number of people in the second survey. (C Additional)