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A and B can complete a work in 15 days and 30 days respectively. The efficiency of C is 25% more than that of A. The ratio of the efficiency of B to D is 1 : 3. If they work together, they will complete the work in ……… days.
- a)60/21
- b)60/19
- c)60/17
- d)60/23
Correct answer is option 'C'. Can you explain this answer?
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Verified Answer
A and B can complete a work in 15 days and 30 days respectively. The e...
A’s one day’s work = 1/15
B’s one day’s work = 1/30
The efficiency of C = 1/15 × 125/100 = 1/12
∴ C alone can complete the whole work in = 12 days
Let the efficiency of D be x
∴ 1 : 3 = 1/30 : x
∴ x = 1/10
∴ D alone can complete the whole work in = 10 days
⇒ One day work of (A + B + C + D) = 1/15 + 1/30 + 1/12 + 1/10 = (4 + 2 + 5 + 6)/60 = 17/60
∴ (A + B + C + D) together can complete the whole work in = 60/17 days
B’s one day’s work = 1/30
The efficiency of C = 1/15 × 125/100 = 1/12
∴ C alone can complete the whole work in = 12 days
Let the efficiency of D be x
∴ 1 : 3 = 1/30 : x
∴ x = 1/10
∴ D alone can complete the whole work in = 10 days
⇒ One day work of (A + B + C + D) = 1/15 + 1/30 + 1/12 + 1/10 = (4 + 2 + 5 + 6)/60 = 17/60
∴ (A + B + C + D) together can complete the whole work in = 60/17 days
Most Upvoted Answer
A and B can complete a work in 15 days and 30 days respectively. The e...
A’s one day’s work = 1/15
B’s one day’s work = 1/30
The efficiency of C = 1/15 × 125/100 = 1/12
∴ C alone can complete the whole work in = 12 days
Let the efficiency of D be x
∴ 1 : 3 = 1/30 : x
∴ x = 1/10
∴ D alone can complete the whole work in = 10 days
⇒ One day work of (A + B + C + D) = 1/15 + 1/30 + 1/12 + 1/10 = (4 + 2 + 5 + 6)/60 = 17/60
∴ (A + B + C + D) together can complete the whole work in = 60/17 days
B’s one day’s work = 1/30
The efficiency of C = 1/15 × 125/100 = 1/12
∴ C alone can complete the whole work in = 12 days
Let the efficiency of D be x
∴ 1 : 3 = 1/30 : x
∴ x = 1/10
∴ D alone can complete the whole work in = 10 days
⇒ One day work of (A + B + C + D) = 1/15 + 1/30 + 1/12 + 1/10 = (4 + 2 + 5 + 6)/60 = 17/60
∴ (A + B + C + D) together can complete the whole work in = 60/17 days
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A and B can complete a work in 15 days and 30 days respectively. The efficiency of C is 25% more than that of A. The ratio of the efficiency of B to D is 1 : 3. If they work together, they will complete the work in ……… days.a)60/21b)60/19c)60/17d)60/23Correct answer is option 'C'. Can you explain this answer?
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A and B can complete a work in 15 days and 30 days respectively. The efficiency of C is 25% more than that of A. The ratio of the efficiency of B to D is 1 : 3. If they work together, they will complete the work in ……… days.a)60/21b)60/19c)60/17d)60/23Correct answer is option 'C'. Can you explain this answer? for SSC 2024 is part of SSC preparation. The Question and answers have been prepared according to the SSC exam syllabus. Information about A and B can complete a work in 15 days and 30 days respectively. The efficiency of C is 25% more than that of A. The ratio of the efficiency of B to D is 1 : 3. If they work together, they will complete the work in ……… days.a)60/21b)60/19c)60/17d)60/23Correct answer is option 'C'. Can you explain this answer? covers all topics & solutions for SSC 2024 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for A and B can complete a work in 15 days and 30 days respectively. The efficiency of C is 25% more than that of A. The ratio of the efficiency of B to D is 1 : 3. If they work together, they will complete the work in ……… days.a)60/21b)60/19c)60/17d)60/23Correct answer is option 'C'. Can you explain this answer?.
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