Q. In a pie chart showing the distribution of time spent on various activities, if 'Exercise' is represented as 10%, which of the following could be a valid percentage for 'Sleep'?
A.
5%
B.
10%
C.
30%
D.
50%
Solution
Sleep typically occupies a larger portion of time, making 30% a valid option.
Q. In a pie chart showing the preferences of students for different sports, if 15% prefer basketball, what is the angle representing basketball in the chart?
A.
54 degrees
B.
36 degrees
C.
72 degrees
D.
90 degrees
Solution
The angle for basketball is (15/100) * 360 = 54 degrees.
Q. In a pie chart showing the preferences of students for different sports, if 50% prefer football, 30% prefer basketball, and the rest prefer tennis and cricket equally, what percentage of students prefer tennis?
A.
10%
B.
15%
C.
20%
D.
5%
Solution
If 50% prefer football and 30% prefer basketball, that totals 80%. The remaining 20% is split equally between tennis and cricket, so 20% / 2 = 10% prefer tennis.
Q. In a pie chart showing the preferences of students for different subjects, if Mathematics is represented by a 90-degree angle, what percentage of students prefer Mathematics?
A.
25%
B.
30%
C.
50%
D.
75%
Solution
A 90-degree angle represents 1/4 of the circle, which is 25%.
Q. In a pie chart showing the preferences of students for different subjects, if Mathematics is represented by a segment of 30%, which of the following could be the total number of students surveyed if 90 students prefer Mathematics?
A.
200
B.
300
C.
400
D.
500
Solution
If 30% corresponds to 90 students, then total students = 90 / 0.30 = 300.
Q. In a pie chart showing the time spent on various activities in a day, if 'Work' takes up 50% of the chart, which of the following activities is least likely to take up more than 10%?
A.
Sleeping
B.
Leisure
C.
Commuting
D.
Eating
Solution
Commuting is typically a smaller segment compared to the others, often less than 10%.
Q. In a pie chart, if 10% of the total area represents the sales of product B and the total sales area is 1,000 square units, what is the area representing product B?
A.
50
B.
75
C.
100
D.
125
Solution
10% of 1,000 square units = 0.10 * 1,000 = 100 square units.
Q. In a pie chart, if the segment for 'Transportation' is 25% and 'Housing' is 35%, what is the combined percentage for 'Food' and 'Entertainment' if they make up the rest?
A.
40%
B.
50%
C.
60%
D.
70%
Solution
The combined percentage for 'Food' and 'Entertainment' is 100% - (25% + 35%) = 40%.
Q. In a pie chart, if the segment for transportation costs is 20% and the segment for housing costs is 30%, what is the percentage of costs for other categories?
A.
50%
B.
40%
C.
60%
D.
70%
Solution
The percentage for other categories is 100% - (20% + 30%) = 50%.
Q. In a pie chart, if the segment representing 'Others' is 10% and the remaining segments are equally divided among three categories, what is the percentage of each of those categories?
A.
30%
B.
25%
C.
20%
D.
15%
Solution
The remaining percentage is 100% - 10% = 90%. Divided equally among three categories, each gets 90% / 3 = 30%.
Q. In a pie chart, the segment representing 'Leisure Activities' is 15% of the total. If the total time available in a week is 168 hours, how many hours are spent on Leisure Activities?
A.
12 hours
B.
15 hours
C.
20 hours
D.
25 hours
Solution
Leisure Activities = 15% of 168 hours = 0.15 * 168 = 25.2 hours, which rounds to 25 hours.
Q. In a pie chart, the segment representing 'Leisure Activities' is 15% of the total. If the total time available is 40 hours, how many hours are spent on Leisure Activities?
Q. In a pie chart, the segment representing 'Transportation' is 25% of the total budget. If the total budget is $4000, what is the amount allocated for Transportation?
Q. In a project involving tasks A, B, C, and D, if A and B can be done simultaneously but must be completed before C, and D can be done at any time, which of the following is a correct sequence?
A.
A, B, C, D
B.
C, A, B, D
C.
D, A, B, C
D.
B, A, C, D
Solution
The sequence A, B, C, D is valid as A and B can be done simultaneously before C.
Q. In a project involving tasks A, B, C, and D, if task D can only start after task B is completed, which of the following is a possible order of tasks?
A.
A, D, B, C
B.
B, A, C, D
C.
C, B, A, D
D.
D, A, B, C
Solution
The order B, A, C, D is valid as D starts after B.
LRDI (Logical Reasoning and Data Interpretation) is a crucial component of various competitive exams, including the CAT. Mastering this subject can significantly enhance your problem-solving skills and boost your exam scores. Practicing MCQs and objective questions in LRDI helps you familiarize yourself with the question patterns, enabling you to tackle important questions with confidence during your exam preparation.
What You Will Practise Here
Understanding different types of data interpretation graphs and charts
Logical reasoning puzzles and their solutions
Key concepts of sets, Venn diagrams, and their applications
Critical reasoning and argument analysis
Data sufficiency questions and techniques
Caselet-based questions for real-world problem solving
Formulas and shortcuts for quick calculations
Exam Relevance
LRDI is not only essential for the CAT but also appears in various other exams such as CBSE, State Boards, NEET, and JEE. In these exams, you may encounter questions that require you to analyze data sets, interpret graphs, or solve logical puzzles. Common question patterns include multiple-choice questions that assess your ability to draw conclusions from given data, making it vital to practice LRDI (CAT) MCQ questions to excel.
Common Mistakes Students Make
Misinterpreting data from graphs or charts, leading to incorrect answers
Overlooking key information in logical reasoning puzzles
Failing to apply the correct formulas in data interpretation questions
Rushing through questions without proper analysis
Neglecting to practice caselets, which can be tricky
FAQs
Question: What are LRDI (CAT) objective questions with answers? Answer: These are multiple-choice questions designed to test your understanding of logical reasoning and data interpretation concepts, often accompanied by detailed solutions.
Question: How can I improve my LRDI skills for exams? Answer: Regular practice of important LRDI (CAT) questions for exams, along with reviewing your mistakes, can significantly enhance your skills.
Start solving practice MCQs today to strengthen your understanding of LRDI concepts and boost your confidence for the upcoming exams. Remember, consistent practice is the key to success!
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