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P is able to do a piece of work in 15 days and Q can do the same work in 20 days. If they can work together for 4 days, what is the fraction of work left?
- a)8/15
- b)7/15
- c)11/15
- d)2/11
Correct answer is option 'A'. Can you explain this answer?
Verified Answer
P is able to do a piece of work in 15 days and Q can do the same work ...
Since P to R is double the distance of P to Q,
Therefore, it is evident that the time taken from P to R and back would be double the time taken from P to Q and back (i.e. double of 6.5 hours = 13 hours).
Therefore, it is evident that the time taken from P to R and back would be double the time taken from P to Q and back (i.e. double of 6.5 hours = 13 hours).
Since going from P to R takes 9 hours, coming back from R to P would take 4 hours i.e. 13- 9 = 4
So Option A is correct
Most Upvoted Answer
P is able to do a piece of work in 15 days and Q can do the same work ...
Amount of work P can do in 1 day = 1/15
Amount of work Q can do in 1 day = 1/20
Amount of work P and Q can do in 1 day = 1/15 + 1/20 = 7/60
Amount of work P and Q can together do in 4 days = 4 x (7/60) = 7/15
Fraction of work left = 1 – 7/15= 8/15
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Community Answer
P is able to do a piece of work in 15 days and Q can do the same work ...
Given:
- Q lies in between P and R such that it is equidistant from both P and R.
- Time taken for boat to go from P to Q and back = 6 hours 30 minutes
- Time taken for boat to go from P to R = 9 hours
To find: Time taken for boat to go from R to P
Solution:
1. Let the distance between P and Q be x. Then, the distance between Q and R is also x.
2. Let the speed of the boat be y km/hour.
3. Time taken for boat to go from P to Q = x/y
4. Time taken for boat to go from Q to P = x/y
5. Time taken for boat to go from P to Q and back = 2x/y = 6.5 hours (given)
6. Therefore, x/y = 3.25 hours
7. Time taken for boat to go from P to R = 9 hours
8. Distance between P and R = 2x
9. Time taken for boat to go from R to P = Distance between P and R / Speed of the boat
10. Time taken for boat to go from R to P = 2x/y = (2*3.25)y = 6.5 hours
11. Therefore, the answer is 4 hours (Option A)
Hence, the time taken for boat to go from R to P is 4 hours.
- Q lies in between P and R such that it is equidistant from both P and R.
- Time taken for boat to go from P to Q and back = 6 hours 30 minutes
- Time taken for boat to go from P to R = 9 hours
To find: Time taken for boat to go from R to P
Solution:
1. Let the distance between P and Q be x. Then, the distance between Q and R is also x.
2. Let the speed of the boat be y km/hour.
3. Time taken for boat to go from P to Q = x/y
4. Time taken for boat to go from Q to P = x/y
5. Time taken for boat to go from P to Q and back = 2x/y = 6.5 hours (given)
6. Therefore, x/y = 3.25 hours
7. Time taken for boat to go from P to R = 9 hours
8. Distance between P and R = 2x
9. Time taken for boat to go from R to P = Distance between P and R / Speed of the boat
10. Time taken for boat to go from R to P = 2x/y = (2*3.25)y = 6.5 hours
11. Therefore, the answer is 4 hours (Option A)
Hence, the time taken for boat to go from R to P is 4 hours.
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P is able to do a piece of work in 15 days and Q can do the same work in 20 days. If they can work together for 4 days, what is the fraction of work left?a)8/15b)7/15c)11/15d)2/11Correct answer is option 'A'. Can you explain this answer? for Quant 2025 is part of Quant preparation. The Question and answers have been prepared according to the Quant exam syllabus. Information about P is able to do a piece of work in 15 days and Q can do the same work in 20 days. If they can work together for 4 days, what is the fraction of work left?a)8/15b)7/15c)11/15d)2/11Correct answer is option 'A'. Can you explain this answer? covers all topics & solutions for Quant 2025 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for P is able to do a piece of work in 15 days and Q can do the same work in 20 days. If they can work together for 4 days, what is the fraction of work left?a)8/15b)7/15c)11/15d)2/11Correct answer is option 'A'. Can you explain this answer?.
P is able to do a piece of work in 15 days and Q can do the same work in 20 days. If they can work together for 4 days, what is the fraction of work left?a)8/15b)7/15c)11/15d)2/11Correct answer is option 'A'. Can you explain this answer? for Quant 2025 is part of Quant preparation. The Question and answers have been prepared according to the Quant exam syllabus. Information about P is able to do a piece of work in 15 days and Q can do the same work in 20 days. If they can work together for 4 days, what is the fraction of work left?a)8/15b)7/15c)11/15d)2/11Correct answer is option 'A'. Can you explain this answer? covers all topics & solutions for Quant 2025 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for P is able to do a piece of work in 15 days and Q can do the same work in 20 days. If they can work together for 4 days, what is the fraction of work left?a)8/15b)7/15c)11/15d)2/11Correct answer is option 'A'. Can you explain this answer?.
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P is able to do a piece of work in 15 days and Q can do the same work in 20 days. If they can work together for 4 days, what is the fraction of work left?a)8/15b)7/15c)11/15d)2/11Correct answer is option 'A'. Can you explain this answer?, a detailed solution for P is able to do a piece of work in 15 days and Q can do the same work in 20 days. If they can work together for 4 days, what is the fraction of work left?a)8/15b)7/15c)11/15d)2/11Correct answer is option 'A'. Can you explain this answer? has been provided alongside types of P is able to do a piece of work in 15 days and Q can do the same work in 20 days. If they can work together for 4 days, what is the fraction of work left?a)8/15b)7/15c)11/15d)2/11Correct answer is option 'A'. Can you explain this answer? theory, EduRev gives you an
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