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Direction: The following question are accompanied by two statements (I) and (II). You have to determine which statements(s) is/are sufficient/necessary to answer the following question.
Q. Find the time taken by 7 males and 10 females to plough the field while working together.
I: 1 male can plough half of the field in 21 days, 3 females can plough two fields of the same area and the same type in 30 days.
II: 2 males can plough a field in 14 days and 2 females can plough the same field in 30 days.
- a)Only II
- b)Either I or II
- c)Both I and II
- d)Only I
- e)None
Correct answer is option 'B'. Can you explain this answer?
Most Upvoted Answer
Direction: The following question are accompanied by two statements (...
Understanding the Problem
To find the time taken by 7 males and 10 females to plough a field together, we need to analyze the provided statements.
Statement I Analysis
- 1 male can plough half of the field in 21 days.
- Therefore, 1 male can plough the entire field in 42 days (since it takes double the time to complete the whole field).
- 3 females can plough 2 fields in 30 days, which means 1 female can plough 1 field in 90 days.
From Statement I, we can calculate the work rates:
- Male's rate: 1/42 fields per day
- Female's rate: 1/90 fields per day
Now we can find the combined work rate of 7 males and 10 females.
Statement II Analysis
- 2 males can plough a field in 14 days, which means 1 male can plough it in 28 days (since it takes double the time for one).
- 2 females can plough the same field in 30 days, leading to 1 female taking 60 days.
From Statement II, we can derive the work rates:
- Male's rate: 1/28 fields per day
- Female's rate: 1/60 fields per day
Again, we can find the combined work rate of 7 males and 10 females.
Conclusion
Both statements I and II provide sufficient information to determine the time taken by 7 males and 10 females to plough the field together.
- Statement I allows us to calculate the combined work rate.
- Statement II also allows for a similar calculation.
Thus, either statement alone is sufficient to answer the question, leading to the correct answer option 'B': Either I or II.
To find the time taken by 7 males and 10 females to plough a field together, we need to analyze the provided statements.
Statement I Analysis
- 1 male can plough half of the field in 21 days.
- Therefore, 1 male can plough the entire field in 42 days (since it takes double the time to complete the whole field).
- 3 females can plough 2 fields in 30 days, which means 1 female can plough 1 field in 90 days.
From Statement I, we can calculate the work rates:
- Male's rate: 1/42 fields per day
- Female's rate: 1/90 fields per day
Now we can find the combined work rate of 7 males and 10 females.
Statement II Analysis
- 2 males can plough a field in 14 days, which means 1 male can plough it in 28 days (since it takes double the time for one).
- 2 females can plough the same field in 30 days, leading to 1 female taking 60 days.
From Statement II, we can derive the work rates:
- Male's rate: 1/28 fields per day
- Female's rate: 1/60 fields per day
Again, we can find the combined work rate of 7 males and 10 females.
Conclusion
Both statements I and II provide sufficient information to determine the time taken by 7 males and 10 females to plough the field together.
- Statement I allows us to calculate the combined work rate.
- Statement II also allows for a similar calculation.
Thus, either statement alone is sufficient to answer the question, leading to the correct answer option 'B': Either I or II.
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Community Answer
Direction: The following question are accompanied by two statements (...
From I,
Time taken by 7 male to plough the field = 42 × 1/7 = 6 days
Time taken by 10 female to plough the field 
⇒ Time taken by 7 males and 10 female = 
Time taken by 7 male to plough the field = 14 × 2/7 = 4 days
Time taken by 10 female to plough the field = 30 x 2 / 10= 6 days
⇒ Time taken by 7 males and 10 female = 4 x 6 / 4 + 6 = 24/10 days
∴ Either Statement I or Statement II
Hence, the correct option is (B).
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Question Description
Direction: The following question are accompanied by two statements (I) and (II). You have to determine which statements(s) is/are sufficient/necessary to answer the following question.Q. Find the time taken by 7 males and 10 females to plough the field while working together.I: 1 male can plough half of the field in 21 days, 3 females can plough two fields of the same area and the same type in 30 days.II: 2 males can plough a field in 14 days and 2 females can plough the same field in 30 days.a)Only IIb)Either I or IIc)Both I and IId)Only Ie)NoneCorrect answer is option 'B'. Can you explain this answer? for Class 1 2025 is part of Class 1 preparation. The Question and answers have been prepared according to the Class 1 exam syllabus. Information about Direction: The following question are accompanied by two statements (I) and (II). You have to determine which statements(s) is/are sufficient/necessary to answer the following question.Q. Find the time taken by 7 males and 10 females to plough the field while working together.I: 1 male can plough half of the field in 21 days, 3 females can plough two fields of the same area and the same type in 30 days.II: 2 males can plough a field in 14 days and 2 females can plough the same field in 30 days.a)Only IIb)Either I or IIc)Both I and IId)Only Ie)NoneCorrect answer is option 'B'. Can you explain this answer? covers all topics & solutions for Class 1 2025 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for Direction: The following question are accompanied by two statements (I) and (II). You have to determine which statements(s) is/are sufficient/necessary to answer the following question.Q. Find the time taken by 7 males and 10 females to plough the field while working together.I: 1 male can plough half of the field in 21 days, 3 females can plough two fields of the same area and the same type in 30 days.II: 2 males can plough a field in 14 days and 2 females can plough the same field in 30 days.a)Only IIb)Either I or IIc)Both I and IId)Only Ie)NoneCorrect answer is option 'B'. Can you explain this answer?.
Direction: The following question are accompanied by two statements (I) and (II). You have to determine which statements(s) is/are sufficient/necessary to answer the following question.Q. Find the time taken by 7 males and 10 females to plough the field while working together.I: 1 male can plough half of the field in 21 days, 3 females can plough two fields of the same area and the same type in 30 days.II: 2 males can plough a field in 14 days and 2 females can plough the same field in 30 days.a)Only IIb)Either I or IIc)Both I and IId)Only Ie)NoneCorrect answer is option 'B'. Can you explain this answer? for Class 1 2025 is part of Class 1 preparation. The Question and answers have been prepared according to the Class 1 exam syllabus. Information about Direction: The following question are accompanied by two statements (I) and (II). You have to determine which statements(s) is/are sufficient/necessary to answer the following question.Q. Find the time taken by 7 males and 10 females to plough the field while working together.I: 1 male can plough half of the field in 21 days, 3 females can plough two fields of the same area and the same type in 30 days.II: 2 males can plough a field in 14 days and 2 females can plough the same field in 30 days.a)Only IIb)Either I or IIc)Both I and IId)Only Ie)NoneCorrect answer is option 'B'. Can you explain this answer? covers all topics & solutions for Class 1 2025 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for Direction: The following question are accompanied by two statements (I) and (II). You have to determine which statements(s) is/are sufficient/necessary to answer the following question.Q. Find the time taken by 7 males and 10 females to plough the field while working together.I: 1 male can plough half of the field in 21 days, 3 females can plough two fields of the same area and the same type in 30 days.II: 2 males can plough a field in 14 days and 2 females can plough the same field in 30 days.a)Only IIb)Either I or IIc)Both I and IId)Only Ie)NoneCorrect answer is option 'B'. Can you explain this answer?.
Solutions for Direction: The following question are accompanied by two statements (I) and (II). You have to determine which statements(s) is/are sufficient/necessary to answer the following question.Q. Find the time taken by 7 males and 10 females to plough the field while working together.I: 1 male can plough half of the field in 21 days, 3 females can plough two fields of the same area and the same type in 30 days.II: 2 males can plough a field in 14 days and 2 females can plough the same field in 30 days.a)Only IIb)Either I or IIc)Both I and IId)Only Ie)NoneCorrect answer is option 'B'. Can you explain this answer? in English & in Hindi are available as part of our courses for Class 1.
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