Question

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.

115
133
162
174

Answer 1

Answer is 174.

using the given data, find the total number of students in the survey(100)
If no. of students using browser B is 58 when total is 100, what will be the number when the total is 300? (58*300/100 = 174)

Answer 2

The correct option is D.

Explanation:

It is given that,

The number of students who use browser A = 75.

The number of students who use both browsers A and B = 40.

The number of students who use browsers B but not A = 18.

The number of students who did not use either browser A or browser B = 7.

From the given information, we can make a two way table as shown below.

Total number of students is 100 and 58 of them use browser B.

If 300 students participate in the survey, then the number of students who use browser B is

`58* 3=174`

Therefore the correct option is D.