Class 1 Exam > Class 1 Questions > Directions: The following question are accom...
Start Learning for Free
Directions: 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.
If ‘x’ boys can complete a work in 10 days and ‘y’ girls can complete the same work in 15 days. Find the number of days taken to complete the work by (x – 4) boys and (y – 3) girls together.
I: If the Ratio of efficiency of boys to girls is 3 : 4 and (x + y) = 18.
II: If x = 2y, then the number of days taken by all the girls is half the number of days taken by all the boys.
- a)Only l
- b)Only ll
- c)Either I or II
- d)Both l and ll
- e)Neither I or ll
Correct answer is option 'A'. Can you explain this answer?
| FREE This question is part of | Download PDF Attempt this Test |
Most Upvoted Answer
Directions: The following question are accompanied by two statements ...
From statement I:
Let the efficiency of each boy be 3a unit/day.
Then, the efficiency of each girl = 4a unit/day.
According to question,
10 × x × 3a = 15 × y × 4a
⇒ 30x = 60y
⇒ x : y = 2 : 1
Also, x + y = 18
So, x = 2/3 × 18 = 12
⇒ y = 18 – 12 = 6
Let the number of days taken by (x – 4) boys and (y – 3) girls together to complete the same work be ‘D’ days.
Then,
[(12 – 4) × 3a + (6 – 3) × 4a] × D = 15 × 6 × 4a
⇒ (24a + 12a) × D = 360a
⇒ D = 360a ÷ 36a
⇒ D = 10 days
Statement I alone is sufficient to answer the question.
Statement II:
Since x = 2y
Now the number of days taken by all the girls is half the number of days taken by all the boys.
Then the efficiency of girls is twice the efficiency of boys.
Let the efficiency of each boy be a unit/day.
Then, the efficiency of each girl = 2a unit/day.
According to question,
10 × x × a = 15 × y × 2a
⇒ 10x = 15y
⇒ x : y = 3 : 2
Statement II alone is not sufficient to answer the question.
Hence, the correct option is (A).
Attention Class 1 Students!
To make sure you are not studying endlessly, EduRev has designed Class 1 study material, with Structured Courses, Videos, & Test Series. Plus get personalized analysis, doubt solving and improvement plans to achieve a great score in Class 1.
|
Explore Courses for Class 1 exam
|
|
Top Courses for Class 1View all
Directions: 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.If ‘x’ boys can complete a work in 10 days and ‘y’ girls can complete the same work in 15 days. Find the number of days taken to complete the work by (x – 4) boys and (y – 3) girls together.I: If the Ratio of efficiency of boys to girls is 3 : 4 and (x + y) = 18.II: If x = 2y, then the number of days taken by all the girls is half the number of days taken by all the boys.a)Only lb)Only llc)Either I or IId)Both l and lle)Neither I or llCorrect answer is option 'A'. Can you explain this answer?
Question Description
Directions: 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.If ‘x’ boys can complete a work in 10 days and ‘y’ girls can complete the same work in 15 days. Find the number of days taken to complete the work by (x – 4) boys and (y – 3) girls together.I: If the Ratio of efficiency of boys to girls is 3 : 4 and (x + y) = 18.II: If x = 2y, then the number of days taken by all the girls is half the number of days taken by all the boys.a)Only lb)Only llc)Either I or IId)Both l and lle)Neither I or llCorrect answer is option 'A'. Can you explain this answer? for Class 1 2024 is part of Class 1 preparation. The Question and answers have been prepared according to the Class 1 exam syllabus. Information about Directions: 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.If ‘x’ boys can complete a work in 10 days and ‘y’ girls can complete the same work in 15 days. Find the number of days taken to complete the work by (x – 4) boys and (y – 3) girls together.I: If the Ratio of efficiency of boys to girls is 3 : 4 and (x + y) = 18.II: If x = 2y, then the number of days taken by all the girls is half the number of days taken by all the boys.a)Only lb)Only llc)Either I or IId)Both l and lle)Neither I or llCorrect answer is option 'A'. Can you explain this answer? covers all topics & solutions for Class 1 2024 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for Directions: 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.If ‘x’ boys can complete a work in 10 days and ‘y’ girls can complete the same work in 15 days. Find the number of days taken to complete the work by (x – 4) boys and (y – 3) girls together.I: If the Ratio of efficiency of boys to girls is 3 : 4 and (x + y) = 18.II: If x = 2y, then the number of days taken by all the girls is half the number of days taken by all the boys.a)Only lb)Only llc)Either I or IId)Both l and lle)Neither I or llCorrect answer is option 'A'. Can you explain this answer?.
Directions: 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.If ‘x’ boys can complete a work in 10 days and ‘y’ girls can complete the same work in 15 days. Find the number of days taken to complete the work by (x – 4) boys and (y – 3) girls together.I: If the Ratio of efficiency of boys to girls is 3 : 4 and (x + y) = 18.II: If x = 2y, then the number of days taken by all the girls is half the number of days taken by all the boys.a)Only lb)Only llc)Either I or IId)Both l and lle)Neither I or llCorrect answer is option 'A'. Can you explain this answer? for Class 1 2024 is part of Class 1 preparation. The Question and answers have been prepared according to the Class 1 exam syllabus. Information about Directions: 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.If ‘x’ boys can complete a work in 10 days and ‘y’ girls can complete the same work in 15 days. Find the number of days taken to complete the work by (x – 4) boys and (y – 3) girls together.I: If the Ratio of efficiency of boys to girls is 3 : 4 and (x + y) = 18.II: If x = 2y, then the number of days taken by all the girls is half the number of days taken by all the boys.a)Only lb)Only llc)Either I or IId)Both l and lle)Neither I or llCorrect answer is option 'A'. Can you explain this answer? covers all topics & solutions for Class 1 2024 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for Directions: 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.If ‘x’ boys can complete a work in 10 days and ‘y’ girls can complete the same work in 15 days. Find the number of days taken to complete the work by (x – 4) boys and (y – 3) girls together.I: If the Ratio of efficiency of boys to girls is 3 : 4 and (x + y) = 18.II: If x = 2y, then the number of days taken by all the girls is half the number of days taken by all the boys.a)Only lb)Only llc)Either I or IId)Both l and lle)Neither I or llCorrect answer is option 'A'. Can you explain this answer?.
Solutions for Directions: 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.If ‘x’ boys can complete a work in 10 days and ‘y’ girls can complete the same work in 15 days. Find the number of days taken to complete the work by (x – 4) boys and (y – 3) girls together.I: If the Ratio of efficiency of boys to girls is 3 : 4 and (x + y) = 18.II: If x = 2y, then the number of days taken by all the girls is half the number of days taken by all the boys.a)Only lb)Only llc)Either I or IId)Both l and lle)Neither I or llCorrect answer is option 'A'. Can you explain this answer? in English & in Hindi are available as part of our courses for Class 1.
Download more important topics, notes, lectures and mock test series for Class 1 Exam by signing up for free.
Here you can find the meaning of Directions: 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.If ‘x’ boys can complete a work in 10 days and ‘y’ girls can complete the same work in 15 days. Find the number of days taken to complete the work by (x – 4) boys and (y – 3) girls together.I: If the Ratio of efficiency of boys to girls is 3 : 4 and (x + y) = 18.II: If x = 2y, then the number of days taken by all the girls is half the number of days taken by all the boys.a)Only lb)Only llc)Either I or IId)Both l and lle)Neither I or llCorrect answer is option 'A'. Can you explain this answer? defined & explained in the simplest way possible. Besides giving the explanation of
Directions: 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.If ‘x’ boys can complete a work in 10 days and ‘y’ girls can complete the same work in 15 days. Find the number of days taken to complete the work by (x – 4) boys and (y – 3) girls together.I: If the Ratio of efficiency of boys to girls is 3 : 4 and (x + y) = 18.II: If x = 2y, then the number of days taken by all the girls is half the number of days taken by all the boys.a)Only lb)Only llc)Either I or IId)Both l and lle)Neither I or llCorrect answer is option 'A'. Can you explain this answer?, a detailed solution for Directions: 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.If ‘x’ boys can complete a work in 10 days and ‘y’ girls can complete the same work in 15 days. Find the number of days taken to complete the work by (x – 4) boys and (y – 3) girls together.I: If the Ratio of efficiency of boys to girls is 3 : 4 and (x + y) = 18.II: If x = 2y, then the number of days taken by all the girls is half the number of days taken by all the boys.a)Only lb)Only llc)Either I or IId)Both l and lle)Neither I or llCorrect answer is option 'A'. Can you explain this answer? has been provided alongside types of Directions: 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.If ‘x’ boys can complete a work in 10 days and ‘y’ girls can complete the same work in 15 days. Find the number of days taken to complete the work by (x – 4) boys and (y – 3) girls together.I: If the Ratio of efficiency of boys to girls is 3 : 4 and (x + y) = 18.II: If x = 2y, then the number of days taken by all the girls is half the number of days taken by all the boys.a)Only lb)Only llc)Either I or IId)Both l and lle)Neither I or llCorrect answer is option 'A'. Can you explain this answer? theory, EduRev gives you an
ample number of questions to practice Directions: 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.If ‘x’ boys can complete a work in 10 days and ‘y’ girls can complete the same work in 15 days. Find the number of days taken to complete the work by (x – 4) boys and (y – 3) girls together.I: If the Ratio of efficiency of boys to girls is 3 : 4 and (x + y) = 18.II: If x = 2y, then the number of days taken by all the girls is half the number of days taken by all the boys.a)Only lb)Only llc)Either I or IId)Both l and lle)Neither I or llCorrect answer is option 'A'. Can you explain this answer? tests, examples and also practice Class 1 tests.
|
|
Explore Courses for Class 1 exam
|
|
Suggested Free Tests
Signup for Free!
Signup to see your scores go up within 7 days! Learn & Practice with 1000+ FREE Notes, Videos & Tests.
|
© EduRev
|
Education Revolution
|
Follow Us
|
Signup to see your scores
go up within 7 days!
Access 1000+ FREE Docs, Videos and Tests
Takes less than 10 seconds to signup