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a can do apiece of work in twenty days b can on fifteen days with the help of c they finish the work on 5 days in what time c can do alone?
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?a can do apiece of work in twenty days b can on fifteen days with the...
A can do the work in 20 days
⇒ 1 day = 1/20 of the work
B can do the work in 15 days
⇒ 1 day = 1/15 of the work
Find the amount of work A and B can complete in a day:
1 day = 1/20 + 1/15 = 7/60
Find the amount of work c can complete in a day:
a + b + c can complete the work in 5 days
⇒ 1 day = 1/5 of the work
C alone
⇒ 1 day = 1/5 - 7/60 = 1/12
Find number of days c needs to complete the work:
1/12 of the work = 1 day

12/12 of the work = 1 x 12 = 12 days
Answer: C can complete the work alone in 12 days.
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?a can do apiece of work in twenty days b can on fifteen days with the help of c they finish the work on 5 days in what time c can do alone?
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?a can do apiece of work in twenty days b can on fifteen days with the help of c they finish the work on 5 days in what time c can do alone? for Class 8 2024 is part of Class 8 preparation. The Question and answers have been prepared according to the Class 8 exam syllabus. Information about ?a can do apiece of work in twenty days b can on fifteen days with the help of c they finish the work on 5 days in what time c can do alone? covers all topics & solutions for Class 8 2024 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for ?a can do apiece of work in twenty days b can on fifteen days with the help of c they finish the work on 5 days in what time c can do alone?.
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