CAT 2018 Question Paper | CAT Verbal Ability Slot 1
Question :

If among 200 students, 105 like pizza and 134 like burger, then the number of students who like only burger can possibly be

Started 3 months ago by Shashank in

Option D is the correct answer.

Explanatory Answer

Given that out of 200 students, 105 like Pizza and 134 like Burger
In order to find the possible number of students who like only Burger, we need to find the range between the minimum and maximum possible number of students

Minimum possible number of Students who like only Burger:

 

Set Theory - Finding the number of students who like only burger


For this, we must try to optimize the Venn diagram in such a way that it has maximum intersection
No of Students who like only Burger = 134 – 105= 29

Maximum possible number of Students who like only Burger:

 

Set Theory - Finding the number of students who like only burger


For this, we must optimize the Venn diagram in such a way that it has minimum intersection
We know that total number of Students = 200
So, Minimum number of students who like both = 105 + 134 – 200 = 39 students
Students who like Burger = 134
Max. no of Students who like only Burger = 134 – 39 = 95
So range => 29 ≤ n ≤ 95
From the options, only (D) 93 lies within range

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