Correct Answer - Option 3 : Three
Given: Seven persons, A, B, C, D, E, F and G go on a vacation on different days of week, Monday, Tuesday, Wednesday, Thursday, Friday, Saturday and Sunday but necessarily in the same order.
1) G goes on Friday.
2) One person goes between G and C.
Days
|
Case 1
|
Case 2
|
Monday
|
|
|
Tuesday
|
|
|
Wednesday
|
C
|
|
Thursday
|
|
|
Friday
|
G
|
G
|
Saturday
|
|
|
Sunday
|
|
C
|
3) D goes on the second day of the week.
4) Three persons go between D and F.
Days
|
Case 1
|
Case 2
|
Monday
|
|
|
Tuesday
|
D
|
D
|
Wednesday
|
C
|
|
Thursday
|
|
|
Friday
|
G
|
G
|
Saturday
|
F
|
F
|
Sunday
|
|
C
|
5) The number of persons goes after C is equal to the number of persons go before G.
Here, case 2 will be cancelled.
6) A goes on one of the days before C.
7) B does not go on Monday or Thursday.
Days
|
Person
|
Monday
|
A
|
Tuesday
|
D
|
Wednesday
|
C
|
Thursday
|
E
|
Friday
|
G
|
Saturday
|
F
|
Sunday
|
B
|
So, the above shown arrangement is the final order of them going to the vacation.
Days
|
Person
|
Alphabetical Order
|
Monday
|
A
|
A
|
Tuesday
|
D
|
B
|
Wednesday
|
C
|
C
|
Thursday
|
E
|
D
|
Friday
|
G
|
E
|
Saturday
|
F
|
F
|
Sunday
|
B
|
G
|
Hence, if all the persons go to vacation in alphabetical order starting from Monday, the position of 3 persons would not change.