CAT DILR Questions | CAT Logical Reasoning questions
FundaMakers is the Best CAT Online Coaching In India. Now prepare for CAT anytime with FundaMakers. We provide well-ordered syllabus coverage for both offline and online CAT preparation batches. FundaMakers brings to you the power-packed, well-structured CAT previous year question bank with more than 4000+ CAT Past Year questions. Data Interpretation and Logical Reasoning (DILR) covers 30-32% part of the total CAT paper. It is one of those sections whose preparation strategy building is very tricky and is subjective to the mental ability and hard work of the aspirant. A decent score in the DILR section for CAT will not only increase the overall percentile in the CAT Exam but will also be considered in the sectional cutoff.
FundaMakers as a team has taken a painstaking step to bring you all the video solutions of the Data Interpretation and Logical Reasoning (DILR) asked in the Previous Year CAT exam. CAT question bank offered by FundaMakers is a power-packed topic-wise compilation of the entire CAT previous year questions. DILR is mostly about meticulous practice, as there are minimal concepts to learn. To maximize your CAT score in DILR make use of FundaMakers CAT Question Bank. “Questions from CAT previous years” examination papers have been incorporated. Let’s get started with CAT Past Year Data Interpretation and Logical Reasoning (DILR) Questions.
Comprehension
Directions for questions: Read the given instructions carefully and answer the questions accordingly.
Fuel contamination levels at each of 20 petrol pumps P1, P2, …, P20 were recorded as either high, medium, or low.
1. Contamination levels at three pumps among P1 – P5 were recorded as high.
2. P6 was the only pump among P1 – P10 where the contamination level was recorded as low.
3. P7 and P8 were the only two consecutively numbered pumps where the same levels of contamination were recorded.
4. High contamination levels were not recorded at any of the pumps P16 – P20.
5. The number of pumps where high contamination levels were recorded was twice the number of pumps where low contamination levels were recorded.
CAT/2018.1
Question . 103
If contamination level at P15 was recorded as medium, then which of the following MUST be FALSE?
Explanatory Answer
Method of solving this CAT DILR Question from Logical Reasoning question
We know that three of P1 to P5 are recorded as High. This means the other two should be M. So, let us fill this data in.
P7 and P8 are both same, so both could be H or both M. Let us try both. We put P7 and P8 in, P9 and P10 get filled automatically.
Let us fill in the totals as well.
The number of pumps where high contamination levels were recorded was twice the number of pumps where low contamination levels were recorded.
So, of the number of low contaminations were x, then the number of high contaminations would be 2x.
H + L = 3x {3, 6, 9, 12, 15, or 18} or, M should be from {2, 5, 8, 11, 14, 17}
L + H is at least 5 so M cannot be 14 or 17. M cannot be 2 either. So, we can have M to be 5, 8 or 11.
So, we can have H, M, L to be {10, 5, 5} or {8, 8, 4} or {6, 11, 3}
There is no H in the P16 to P20 range, so total H cannot be 10. So, H, M, L being {10, 5, 5} can be ruled out.
So, we can have H, M, L to be {8, 8, 4} or {6, 11, 3}.
We cannot have more than 5 M’s in the range from P16 to P20.
So, we now know that {6, 11, 3} is also ruled out. So H, M, L has to be {8, 8, 4}.
We know that in the first 10 pipes we could have has H, M, L could have been {6, 3, 1} or {4, 5, 1}
So, H, M, L for the last 10 should be {2, 5, 3} or {4, 3, 3}. Since there is no H in the first 5 pipes, we cannot have 4 H in the P16 to P20 range.
So, we need to have only {6, 3, 1} in the first range.
The last 10 pipes should have H, M, L to be {2, 5, 3}.
High contamination levels were not recorded at any of the pumps P16 – P20. So, the last 5 should be either MLMLM or LMLML.
If the last 5 were LMLML, then we would not have one more L for P11 to P15. So, P11 to P15 should be MHMHM. Now, let us fine-tune this.
We know that P11 cannot be H otherwise P10 and P11 would be H.
So, we need to accommodate 2 H’s in the P12 to P15 range.
We could have them at P12 and P14, P12 and P15 and P13 and P15.
If P15 were not H, it has to be L. So, we can fill the first column completely.
P15 was recorded as maximum. This eliminates 3 possibilities.
From the table we can see that, except choice A everything is true and therefore our answer is Choice A.
Hey! Worried about IIM calls due to your marks in 10th,12th, and Graduation?
Don't worry! Know your chances of getting an IIM Call based on your profile with our Profile Professor: https://fundamakers.com/profile-professor/
5 Must- NOT-Dos during CAT Preparation.
- Do not treat CAT as 'Everything'.
- Do not quit your job for CAT exam preparation.
- Learning till The Eleventh hour instead of doing proper revision.
- Not checking the syllabus thoroughly.
- Piling up multiple books.
Common mistakes made by CAT aspirants during preparation.
FundaMakers- Best CAT Online Preparation Institute in India
Best Online and Offline CAT Coaching in Lucknow.
For any CAT Preparation related query, reach out to us at 9598333344.