The question is given below consist of a question followed by three statements labeled as I, II and III. You have to decide whether these statements give enough information required to answer the question or not. Seven friends A, B, C, D, E, F and G have their Physics practical exam scheduled on seven different days of a week starting from Monday and ending on Sunday. I. A, E and F have their exams on three consecutive days in the same order. Neither G nor F has exam on Friday. D have exam on Sunday. II. Only four persons have exam between G and B. B does not have exam either on Monday or on Sunday. III. F has its exam three days after G’s exam. When C had his exam?
The question is given below consist of a question followed by three statements labeled as I, II and III. You have to decide whether these statements give enough information required to answer the question or not. Seven friends A, B, C, D, E, F and G have their Physics practical exam scheduled on seven different days of a week starting from Monday and ending on Sunday. I. A, E and F have their exams on three consecutive days in the same order. Neither G nor F has exam on Friday. D have exam on Sunday. II. Only four persons have exam between G and B. B does not have exam either on Monday or on Sunday. III. F has its exam three days after G’s exam. When C had his exam? Correct Answer If statements I and II together are sufficient to answer the question.
Form statement I:
|
Day |
Case I |
Case II |
Case III |
|
Person |
Person |
Person |
|
|
Monday |
A |
|
|
|
Tuesday |
E |
A |
|
|
Wednesday |
F |
E |
|
|
Thursday |
|
F |
A |
|
Friday |
|
|
E |
|
Saturday |
|
|
F |
|
Sunday |
D |
D |
D |
Hence, statement I alone is not sufficient to answer the question.
Form statement II:
|
Day |
Case I |
Case II |
|
Person |
Person |
|
|
Monday |
G |
|
|
Tuesday |
|
B |
|
Wednesday |
|
|
|
Thursday |
|
|
|
Friday |
|
|
|
Saturday |
B |
|
|
Sunday |
|
G |
Hence, statement II alone is not sufficient to answer the question.
Form statement III:
|
Day |
Case I |
Case II |
Case III |
Case IV |
|
Person |
Person |
Person |
Person |
|
|
Monday |
G |
|
|
|
|
Tuesday |
|
G |
|
|
|
Wednesday |
|
|
G |
|
|
Thursday |
F |
|
|
G |
|
Friday |
|
F |
|
|
|
Saturday |
|
|
F |
|
|
Sunday |
|
|
|
F |
Hence, statement III alone is not sufficient to answer the question.
On combining statements, I and II:
|
Day |
Person |
|
Monday |
G |
|
Tuesday |
A |
|
Wednesday |
E |
|
Thursday |
F |
|
Friday |
C |
|
Saturday |
B |
|
Sunday |
D |
Clearly, C’s exam was on Friday.
Hence, only statements I and II are sufficient to answer the question.