Verbal Reasoning - Seating Arrangement - Discussion

Discussion Forum : Seating Arrangement - Seating Arrangement 10 (Q.No. 1)
Directions to Solve
In a class there are seven students (including boys and girls) A, B, C, D, E, F and G. They sit on three benches I, II and III. Such that at least two students on each bench and at least one girl on each bench. C who is a girl student, does not sit with A, E and D. F the boy student sits with only B. A sits on the bench I with his best friends. G sits on the bench III. E is the brother of C.

1.
How many girls are there out of these 7 students ?
3
3 or 4
4
Data inadequate
Answer: Option
Explanation:

The number of girls is either 3 or 4.

Discussion:
50 comments Page 4 of 5.

Praveen said:   1 decade ago
According to the question, A sits on the bench 1 and G sits on the bench 3. Since F the boy student sits with only B, so place F and B on the bench 2. Because F is a boy, B must be a girl. Given that, C(girl) can not sit with A, E and D so place it on bench 3.

Given that, A sits on the bench I with his best friends. Therefore more then two students are sitting on bench 1, which are A, E and D.

Since E is the brother of C. E is a boy.

In bench 1 min one person should be girl, but we don't no about A &D.
girls=C ,B confirmed and more 1 or 2 persons from A ,D are girls.

Therefore answer is (B).

Pravin said:   1 decade ago
Sorry its right 3/4 bcs there is nothing given about the gender of g so 3/4.

Prem kumar said:   1 decade ago
Option B is right.

it's obvious that there should be 3 girls ....a/c to ques.
And it's clear that boys E, F, A(sits with his friend).

One member can be either girl or boy.
So, there should be either 3 or 4 girls.

Vijay shanker sahu said:   1 decade ago
There is exact three girls because A is sit with his friend. It means A is a male and E is male So BCD are only females.

Jayant said:   1 decade ago
As per my conclusion G could be Male or female so answer B is right.

KRISHNA said:   1 decade ago
F Is a Boy Hence male Given.
E Is Brother Hence Male Given.

A Sits With HIS Best Friends Given (HIS Used For A Hence Male).
So It Is Clear That 3 Are Male.

Total no.of Students Are 7,
So There May Be 3 Or 4 Girls.
(2)

Teja said:   1 decade ago
Let me explain this answer.

1) A seat with "his" "friends"
i.e., A is boy and 1st bench has 3 students.

2) F seats "only" with B.
Given F is boy and i.e., B is girl.

3) G is 3rd bench remaining student is C.

So,
Males are f, e, a.

So answer is 3 or 4.

Naren said:   1 decade ago
@Anish.

F the boy student sits with only B(It means that FB can occupy only 2 row). Since we don't know whether G is he or she .. So no of girls could be 3 or 4.

Anish said:   1 decade ago
Let me help you out.
There is 2 possible answers.

1)
A F B
E D
G C

OR

2)
A E D
F B
G C

In any arrangement we know C is a girl.
A is a boy as in question it is told "his friends".
E & F are boys .

Take 1st arrangement.
A, F boys & B shd be girl.
E a boy & D shd be girl.
G Can be girl or boy bt C is girl.
i.e Total 4 girls.

But similarly try 2 arrangement you will turn up with 3 girls.

Hence 3 or 4 girls.

Bikram said:   1 decade ago
But the question is still not clear that A, E and D has to b in the same bench. How could we derive to this conclusion, can anyone explain please?


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