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 ?
There can be only Three girls as E is stated to be brother of C.
Ankita said:
(Sat, Dec 18, 2010 07:47:10 AM)
How option b is right?
Ritesh said:
(Tue, Feb 1, 2011 06:06:47 AM)
I think option A is right.
Divya said:
(Wed, May 18, 2011 04:23:02 AM)
Where it is mentioned that 'd' is a girl and 'a' is a boy.
Anselam said:
(Wed, Jun 1, 2011 04:24:11 PM)
A sits on the bench I with 'his' best friends. E is the 'brother' of C. This means A & E are boys so by default D is a girl because atleast one girl sits on each bench.
Anselam said:
(Wed, Jun 1, 2011 04:29:58 PM)
In the question if it is said thad that atleast 1 boy sits on each bench then G would be a boy. Since nothing like this is mentioned it cannot be determined that G is a boy or girl. Also no his or her term is mentioned with G in any sentence of the question.
Harsha said:
(Wed, Nov 2, 2011 03:05:34 PM)
How can we say that B is girl?
Krishna said:
(Fri, Dec 9, 2011 08:32:13 AM)
How them take 'D' is a girl?
Ravi said:
(Tue, Aug 7, 2012 11:17:32 PM)
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. Because A and D are boys, so E is a girl.
G may be a boy or girl.
Answer (b) is correct.
Sid said:
(Sun, Mar 3, 2013 08:55:21 PM)
E is the the brother of C so how can E become a girl ?
Bikram said:
(Fri, Mar 8, 2013 11:17:03 PM)
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?
Anish said:
(Fri, May 3, 2013 10:56:01 AM)
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.
