A survey was conducted among 400 students of age groups 7-12 years and 13-18 years to find their favorite music genre. The students had to select any one genre out of jazz, rock, and pop. Out of the 200 students in the age group 7-12 years who participated in the survey, 142 liked rock or pop music. The total number of students of both age groups who liked jazz was 72.

Using a two-way table, compute the total number of students in the age group 13-18 years who liked rock or pop music.

122

130

142

186

Question

A survey was conducted among 400 students of age groups 7-12 years and 13-18 years to find their favorite music genre. The students had to select any one genre out of jazz, rock, and pop. Out of the 200 students in the age group 7-12 years who participated in the survey, 142 liked rock or pop music. The total number of students of both age groups who liked jazz was 72.

Using a two-way table, compute the total number of students in the age group 13-18 years who liked rock or pop music.

122

130

142

186

anonymous · Answer

I got 186.

anonymous · Answer

Can you help me with Another one

A confectionary company did a survey among students. It was found that 80 students liked pastries and 30 of those students liked candies also. There were 15 students who did not like pastries but liked candies. There were 5 students who did not like either pastries or candies.

Using a two-way table, predict the number of students who would like candies when 200 students participate in the survey.

45

50

90

95

anonymous · Answer

45/100 students like candies yes? so if there 200 students, 200*45/100=90 students like candies