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The efficiency of A, B and C in the ratio as A:B=2:1, and B:C =3:4. They start working together and complete the work in 7 days. How much time taken by B and C work together to complete the same work?
  • a)
    13 days
  • b)
    10 days
  • c)
    12 days
  • d)
    15 days
Correct answer is option 'A'. Can you explain this answer?
Most Upvoted Answer
The efficiency ofA, BandCin the ratio asA:B=2:1, andB:C =3:4. They sta...
Given:
Ratio of efficiency A:B = 2:1
Ratio of efficiency B : C = 3:4
Total time taken by A, B and C to complete the work =7 days
Calculation:
Ratio of Efficiency of A and B = 2:1
Ratio of Efficiency of B and C = 3:4
By equaling the value of B, we can find the ratio of efficiency of A,B and C = 6:3:4
Total work = (6+3+4)×7
⇒ Total work = 13×7 = 91 units
Combined efficiency of B and C = 3+4 = 7 units/ day
Time taken by B and c to complete the work = 91/7 = 13 days
∴ The time taken by B and C to complete the given work is 13 days.
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The efficiency ofA, BandCin the ratio asA:B=2:1, andB:C =3:4. They start working together and complete the work in 7 days. How much time taken by B and C work together to complete the same work?a)13 daysb)10 daysc)12 daysd)15 daysCorrect answer is option 'A'. Can you explain this answer?
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The efficiency ofA, BandCin the ratio asA:B=2:1, andB:C =3:4. They start working together and complete the work in 7 days. How much time taken by B and C work together to complete the same work?a)13 daysb)10 daysc)12 daysd)15 daysCorrect answer is option 'A'. Can you explain this answer? for RRB NTPC/ASM/CA/TA 2024 is part of RRB NTPC/ASM/CA/TA preparation. The Question and answers have been prepared according to the RRB NTPC/ASM/CA/TA exam syllabus. Information about The efficiency ofA, BandCin the ratio asA:B=2:1, andB:C =3:4. They start working together and complete the work in 7 days. How much time taken by B and C work together to complete the same work?a)13 daysb)10 daysc)12 daysd)15 daysCorrect answer is option 'A'. Can you explain this answer? covers all topics & solutions for RRB NTPC/ASM/CA/TA 2024 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for The efficiency ofA, BandCin the ratio asA:B=2:1, andB:C =3:4. They start working together and complete the work in 7 days. How much time taken by B and C work together to complete the same work?a)13 daysb)10 daysc)12 daysd)15 daysCorrect answer is option 'A'. Can you explain this answer?.
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