CRE 3 - 4 Set Venn Diagram | LR - Venn Diagram
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Answer the next 5 questions based on the information given below:
Apti4All offered four subjects – QA, DILR, VA and RC. Students studying at Apti4All had the option of attending classes for one, two or three subjects but not all the four as the classes of RC and VA were conducted at the same time and the students had to choose one of the two. The following details give the number of students who were attending tuition in different subjects.
- Students attending tuitions in VA = 72
- Students attending tuitions is VA and DILR = 16
- Students attending tuitions in QA and VA = 26
- Students attending tuitions in VA, QA and DILR = 16
- Students attending tuitions in QA = 108
- Students attending tuitions in QA and RC = 44
- Students attending tuitions in RC and DILR = 38
- Students attending tuitions in QA, DILR and RC = 24
- Students attending tuitions in RC = 98
- Students attending tuitions in QA and DILR = 54
- Students attending tuitions in DILR = 80
What is the total number of students attending classes at Apti4All?
Solution
Discuss
ReportThe number of students attending tuitions for exactly three subjects are?
The number of students attending tuitions for exactly one subject are?
The number of students attending tuitions for exactly only DILR and RC are?
The number of students attending tuitions for QA or DILR but not RC?
Answer the next 5 questions based on the information given below:
In a colony, residents can watch four different OTT platforms – Hotstar, Netflix, SonyLiv and Prime. 20% of them do not watch any OTT platform. The four platforms given in the above order are watched by 460, 360, 360 and 440 people respectively. The number of people watching exactly 2 platforms for any two platforms is 40. There are 60 people who watch all the four platforms but there is nobody who watches exactly three out of the four platforms.
How many people watch exactly two platforms?
- (a)
240
- (b)
300
- (c)
160
- (d)
180
How many people watched exactly one platform?
- (a)
1200
- (b)
900
- (c)
1500
- (d)
700
How many people do not watch any platform at all?
- (a)
75
- (b)
100
- (c)
225
- (d)
300
What percentage of the people watching Netflix also watch at least one other platform?
- (a)
35%
- (b)
55%
- (c)
50%
- (d)
65%
If all the people in the college including those who do not watch any platform watch at least one more platform, (out of the four platforms above) which they do not watch at present, then what is the least number of people watching all the four platforms?
- (a)
120
- (b)
50
- (c)
30
- (d)
60