Quant Exam > Quant Questions > Mayank can do 50% more work than Shishu in th...
Start Learning for Free
Mayank can do 50% more work than Shishu in the same time. Shishu alone can do a piece of work in 30 hours. Shishu starts working and he had already worked for 12 hours when Mayank joins him. How many hours should Shishu and Mayank work together to complete the remaining work?
- a)6
- b)12
- c)4.8
- d)7.2
Correct answer is option 'D'. Can you explain this answer?
| FREE This question is part of | Download PDF Attempt this Test |
Verified Answer
Mayank can do 50% more work than Shishu in the same time. Shishu alone...
Shishu alone does the work in 30 hours
So in 1 hour he does 1/30 of the work
Mayank in 1 hour does 1/30 + 1/2*1/30= 1/30 +1/60 = 3/60 = 1/20 of the work
Together in 1 hour they do 1/30 +1/20 = 5/60 = 1/12 of the work
Together they can finish the work in 12 hours
Shishu in 12 hours does 12/ 30 = 2/5
Remaining work = 3/5
3/5 X 12 = 36/5 = 7.2 hours
Most Upvoted Answer
Mayank can do 50% more work than Shishu in the same time. Shishu alone...
Answer is 10.8 hrs , which is not there in options . how 7.2 can be the answer please explain ??
Free Test
FREE
| Start Free Test |
Community Answer
Mayank can do 50% more work than Shishu in the same time. Shishu alone...
Given:
Mayank can do 50% more work than Shishu in the same time.
Shishu alone can do a piece of work in 30 hours.
Shishu starts working and he had already worked for 12 hours when Mayank joins him.
To find: How many hours should Shishu and Mayank work together to complete the remaining work?
Solution:
Let us assume that Shishu can do 1 unit of work in 1 hour.
So, Shishu can do the whole work in 30 hours.
Mayank can do 50% more work than Shishu in the same time.
So, Mayank can do 1.5 units of work in 1 hour.
Shishu works for 12 hours.
So, Shishu has completed 12 units of work.
Remaining work = 1 unit of work - 12 units of work = -11 units of work
(Note: Here, negative sign indicates that the work is already done by Shishu and Mayank)
Now, Shishu and Mayank work together to complete the remaining work.
Let the time taken by both of them be x hours.
Shishu can do (1/30) units of work in 1 hour.
So, in x hours, Shishu can do (x/30) units of work.
Mayank can do 1.5 units of work in 1 hour.
So, in x hours, Mayank can do (1.5x) units of work.
Total work done by both of them = Work done by Shishu + Work done by Mayank
-11 = (x/30) + (1.5x)
-11 = (3x/60) + (2x/60)
-11 = (5x/60)
x = (-11 * 60) / 5
x = -132
The negative value of x is not possible as time cannot be negative.
So, we can ignore the negative sign and take the absolute value of x.
x = 132/5
x = 26.4
Therefore, Shishu and Mayank should work together for 26.4 hours (approx) to complete the remaining work.
Answer: Option D) 7.2 (approx)
Mayank can do 50% more work than Shishu in the same time.
Shishu alone can do a piece of work in 30 hours.
Shishu starts working and he had already worked for 12 hours when Mayank joins him.
To find: How many hours should Shishu and Mayank work together to complete the remaining work?
Solution:
Let us assume that Shishu can do 1 unit of work in 1 hour.
So, Shishu can do the whole work in 30 hours.
Mayank can do 50% more work than Shishu in the same time.
So, Mayank can do 1.5 units of work in 1 hour.
Shishu works for 12 hours.
So, Shishu has completed 12 units of work.
Remaining work = 1 unit of work - 12 units of work = -11 units of work
(Note: Here, negative sign indicates that the work is already done by Shishu and Mayank)
Now, Shishu and Mayank work together to complete the remaining work.
Let the time taken by both of them be x hours.
Shishu can do (1/30) units of work in 1 hour.
So, in x hours, Shishu can do (x/30) units of work.
Mayank can do 1.5 units of work in 1 hour.
So, in x hours, Mayank can do (1.5x) units of work.
Total work done by both of them = Work done by Shishu + Work done by Mayank
-11 = (x/30) + (1.5x)
-11 = (3x/60) + (2x/60)
-11 = (5x/60)
x = (-11 * 60) / 5
x = -132
The negative value of x is not possible as time cannot be negative.
So, we can ignore the negative sign and take the absolute value of x.
x = 132/5
x = 26.4
Therefore, Shishu and Mayank should work together for 26.4 hours (approx) to complete the remaining work.
Answer: Option D) 7.2 (approx)
|
Explore Courses for Quant exam
|
|
Similar Quant Doubts
Mayank can do 50% more work than Shishu in the same time. Shishu alone can do a piece of work in 30 hours. Shishu starts working and he had already worked for 12 hours when Mayank joins him. How many hours should Shishu and Mayank work together to complete the remaining work?a)6b)12c)4.8d)7.2Correct answer is option 'D'. Can you explain this answer?
Question Description
Mayank can do 50% more work than Shishu in the same time. Shishu alone can do a piece of work in 30 hours. Shishu starts working and he had already worked for 12 hours when Mayank joins him. How many hours should Shishu and Mayank work together to complete the remaining work?a)6b)12c)4.8d)7.2Correct answer is option 'D'. Can you explain this answer? for Quant 2024 is part of Quant preparation. The Question and answers have been prepared according to the Quant exam syllabus. Information about Mayank can do 50% more work than Shishu in the same time. Shishu alone can do a piece of work in 30 hours. Shishu starts working and he had already worked for 12 hours when Mayank joins him. How many hours should Shishu and Mayank work together to complete the remaining work?a)6b)12c)4.8d)7.2Correct answer is option 'D'. Can you explain this answer? covers all topics & solutions for Quant 2024 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for Mayank can do 50% more work than Shishu in the same time. Shishu alone can do a piece of work in 30 hours. Shishu starts working and he had already worked for 12 hours when Mayank joins him. How many hours should Shishu and Mayank work together to complete the remaining work?a)6b)12c)4.8d)7.2Correct answer is option 'D'. Can you explain this answer?.
Mayank can do 50% more work than Shishu in the same time. Shishu alone can do a piece of work in 30 hours. Shishu starts working and he had already worked for 12 hours when Mayank joins him. How many hours should Shishu and Mayank work together to complete the remaining work?a)6b)12c)4.8d)7.2Correct answer is option 'D'. Can you explain this answer? for Quant 2024 is part of Quant preparation. The Question and answers have been prepared according to the Quant exam syllabus. Information about Mayank can do 50% more work than Shishu in the same time. Shishu alone can do a piece of work in 30 hours. Shishu starts working and he had already worked for 12 hours when Mayank joins him. How many hours should Shishu and Mayank work together to complete the remaining work?a)6b)12c)4.8d)7.2Correct answer is option 'D'. Can you explain this answer? covers all topics & solutions for Quant 2024 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for Mayank can do 50% more work than Shishu in the same time. Shishu alone can do a piece of work in 30 hours. Shishu starts working and he had already worked for 12 hours when Mayank joins him. How many hours should Shishu and Mayank work together to complete the remaining work?a)6b)12c)4.8d)7.2Correct answer is option 'D'. Can you explain this answer?.
Solutions for Mayank can do 50% more work than Shishu in the same time. Shishu alone can do a piece of work in 30 hours. Shishu starts working and he had already worked for 12 hours when Mayank joins him. How many hours should Shishu and Mayank work together to complete the remaining work?a)6b)12c)4.8d)7.2Correct answer is option 'D'. Can you explain this answer? in English & in Hindi are available as part of our courses for Quant.
Download more important topics, notes, lectures and mock test series for Quant Exam by signing up for free.
Here you can find the meaning of Mayank can do 50% more work than Shishu in the same time. Shishu alone can do a piece of work in 30 hours. Shishu starts working and he had already worked for 12 hours when Mayank joins him. How many hours should Shishu and Mayank work together to complete the remaining work?a)6b)12c)4.8d)7.2Correct answer is option 'D'. Can you explain this answer? defined & explained in the simplest way possible. Besides giving the explanation of
Mayank can do 50% more work than Shishu in the same time. Shishu alone can do a piece of work in 30 hours. Shishu starts working and he had already worked for 12 hours when Mayank joins him. How many hours should Shishu and Mayank work together to complete the remaining work?a)6b)12c)4.8d)7.2Correct answer is option 'D'. Can you explain this answer?, a detailed solution for Mayank can do 50% more work than Shishu in the same time. Shishu alone can do a piece of work in 30 hours. Shishu starts working and he had already worked for 12 hours when Mayank joins him. How many hours should Shishu and Mayank work together to complete the remaining work?a)6b)12c)4.8d)7.2Correct answer is option 'D'. Can you explain this answer? has been provided alongside types of Mayank can do 50% more work than Shishu in the same time. Shishu alone can do a piece of work in 30 hours. Shishu starts working and he had already worked for 12 hours when Mayank joins him. How many hours should Shishu and Mayank work together to complete the remaining work?a)6b)12c)4.8d)7.2Correct answer is option 'D'. Can you explain this answer? theory, EduRev gives you an
ample number of questions to practice Mayank can do 50% more work than Shishu in the same time. Shishu alone can do a piece of work in 30 hours. Shishu starts working and he had already worked for 12 hours when Mayank joins him. How many hours should Shishu and Mayank work together to complete the remaining work?a)6b)12c)4.8d)7.2Correct answer is option 'D'. Can you explain this answer? tests, examples and also practice Quant tests.
|
|
Explore Courses for Quant 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
|
|
Signup to see your scores
go up within 7 days!
Access 1000+ FREE Docs, Videos and Tests
Takes less than 10 seconds to signup