English and Logical Reasoning Prep Guide
- Exam
- English and Logical Reasoning Prep Guide
- Subject
- Logical Reasoning
- Chapter
- Data Sufficiency
English and Logical Reasoning Prep Guide · Logical Reasoning · Data Sufficiency
Directions: Each of the following consists of a question and some...
Directions: Each of the following consists of a question and some statements given below it. You have to decide whether the data provided in the statements are sufficient to answer the question.
Seven subjects viz. English, Hindi, Maths, Science, Art, GK and Computer were taught in a tution on seven days of a week starting from Monday such that only one subject is taught on one day. How many subjects are taught between Hindi and Art?
Statement I:& Only two subjects were taught before Computer, which is taught just before Art. English was neither the first nor the last subject to be taught. Science was taught on Saturday.
Statement II:& Hindi was not the last subject to be taught. Art was taught before GK. English was not the first subject to be taught.
Statement III:& Art and GK were taught at a gap of one day. Science was taught immediately before Maths. Computer was taught on Wednesday.
Statement I:& Only two subjects were taught before Computer, which is taught just before Art. English was neither the first nor the last subject to be taught. Science was taught on Saturday.
Statement II:& Hindi was not the last subject to be taught. Art was taught before GK. English was not the first subject to be taught.
Statement III:& Art and GK were taught at a gap of one day. Science was taught immediately before Maths. Computer was taught on Wednesday.
Options
- AIf the data in statement I and II together is sufficient.
- BIf the data in statement II and III together is sufficient.
- CIf the data in all the statements together is necessary.
- DIf the data in all the statements together is not sufficient.
Correct answer
D. If the data in all the statements together is not sufficient.
Step-by-step solution
Seven subjects viz. English, Hindi, Maths, Science, Art, GK and Computer were taught in a tution on seven days of a week starting from Monday such that only one subject is taught on one day.
How many subjects were taught between Hindi and Art?
Statement I:& Only two subjects were taught before Computer, which is taught just before Art. English was neither the first nor the last subject to be taught. Science was taught on Saturday.
Statement II:& Hindi was not the last subject to be taught. Art was taught before GK. English was not the first subject to be taught.
Statement III:& Art and GK were taught at a gap of one day. Science was taught immediately before Maths. Computer was taught on Wednesday.
Checking statement I and II together:
How many subjects were taught between Hindi and Art?
Statement I:& Only two subjects were taught before Computer, which is taught just before Art. English was neither the first nor the last subject to be taught. Science was taught on Saturday.
Statement II:& Hindi was not the last subject to be taught. Art was taught before GK. English was not the first subject to be taught.
Statement III:& Art and GK were taught at a gap of one day. Science was taught immediately before Maths. Computer was taught on Wednesday.
Checking statement I and II together:
Following schedule can be drawn with the given hints.
| Day | Subject |
| Monday | |
| Tuesday | |
| Wednesday | & Computer |
| Thursday | Art& |
| Friday | GK/& |
| Saturday | & Science |
| Sunday | & GK/ |
With the given data we cannot find the day on which Hindi is taught, thus we cannot answer the given question.
Hence data in statement I and II together is not sufficient.
Checking statement II and III together:
Following schedule can be drawn with the given hints.
| Day | Subject |
| Monday | |
| Tuesday | |
| Wednesday | Computer |
| Thursday | |
| Friday | |
| Saturday | |
| Sunday |
With the given data we cannot find the day on which Hindi and Art is taught, thus we cannot answer the given question.
Hence data in statement II and III together is not sufficient.
Checking all statements I, II and III:
Following schedule can be drawn with the given hints.
| Day | Subject |
| Monday | |
| Tuesday | |
| Wednesday | Computer |
| Thursday | Art |
| Friday | |
| Saturday | Science |
| Sunday |
As the informations that Art and GK were taught at a gap of one day and Art was taught before GK and immediately after Computer, also Science was taught on Saturday overlap with each other, thus no definite answer can be inferred.
Hence data in all the statements I, II and III are not sufficient to answer the question.
Hence option D is correct.