Q7
What was the number of schools having only facilities F1 and F3?
Answer: 42
Consider the solution to the first question of this set.
Number of schools having only facilities F1 and F3 = 42
Hence, 42.
CAT 2020 LRDI Slot 3 Question 7 · LR - Venn Diagrams & Set Logic
Answer it first: the answer and the solution appear right after.
Questions on this set: Q5 Q6 Q7 Q8
Answer the next 4 questions based on the information given.
A survey of 600 schools in India was conducted to gather information about their online teaching learning processes (OTLP). The following four facilities were studied.
F1: Own software for OTLP
F2: Trained teachers for OTLP
F3: Training materials for OTLP
F4: All students having Laptops
The following observations were summarized from the survey.
- 80 schools did not have any of the four facilities – F1, F2, F3, F4.
- 40 schools had all four facilities.
- The number of schools with only F1, only F2, only F3, and only F4 was 25, 30, 26 and 20 respectively.
- The number of schools with exactly three of the facilities was the same irrespective of which three were considered.
- 313 schools had F2.
- 26 schools had only F2 and F3 (but neither F1 nor F4).
- Among the schools having F4, 24 had only F3, and 45 had only F2.
- 162 schools had both F1 and F2.
- The number of schools having F1 was the same as the number of schools having F4.