Directions : Eight friends - M, N, O, P, Q, R, S and T were born on different dates of the same year. A person was born either on 12th or 13th of the months among June, July, August and September. Three persons were born between T and N. R was born immediately before T. M and T were born in the same numbered date. More than two persons were born between M and P. One person was born between Q and S. N was born in July. P and S were born in the same month. S was not born in June.
Four of the following were in a certain group, which of the following that does not belong to that group?
1.O and N were born in the same numbered date
2.P and T were born on different numbered dates
3.Four persons were born between M and R
4.P was born immediately before S
5.S was born in July
Correct Answer : 3
Solution :
N was born in July. Three persons were born between T and N. R was born immediately before T.
Case 1
Case 2
Month
Person
Person
June 12th
June 13th
July 12th
N
July 13th
N
August 12th
August 13th
R
September 12th
T
R
September 13th
T
M and T were born in the same numbered date. T was not born in August. More than two persons were born between M and P. P and S were born in the same month. One person was born between Q and S. S was not born in June.
Case 1
Case 2
Month
Person
Person
June 12th
M
O
June 13th
M
July 12th
N
Q
July 13th
N
August 12th
S
August 13th
R
P
September 12th
T
R
September 13th
T
Case 1 is invalid because P and S were born in the same month.
Final arrangement is
Month
Person
June 12th
O
June 13th
M
July 12th
Q
July 13th
N
August 12th
S
August 13th
P
September 12th
R
September 13th
T
Four persons were born between M and R.
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