A company did a survey to compare the popularity of two web browsers. It was found that 75 students used browser A, and 40 of those students used browser B also. There were 18 students who did not use browser A but used browser B there were 7 students who did not use either browser A or browser B. Using a two-way table, predict the number of students who would use browser B when 300 students participate in the survey. A) 115 B) 133 C) 162 D) 174
75 - 40 = 35 students used just browser A; 18 students used just browser B; 40 students used both ( A and B ); 7 students did not use either browser A or browser B. 35 + 18 + 40 + 7 = 100 100 students ------------- 58 use browser A 300 students --------------- x use browser B x = 58 * 300 / 100 = 58 * 3 = 174 Answer: D ) 174
