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ICSE Class 8 Answered

Diwakar can do a work in 8 1/2  days. After Diwakar worked for 2 days, Bhaskar joined. They worked for one day. The capacity of Bhaskar is double the capacity of Diwakar.On the 4th day, the work is completed by both with the help of Harsha. In howmany dayscould Harsha alone do the work?
Asked by nathsantanukumar | 10 Aug, 2018, 07:28: AM
answered-by-expert Expert Answer
begin mathsize 16px style Diwakar space completes space work space in space 17 over 2 space days so space in space straight a space day space diwakar space finishes space equals 2 over 17 th space part space of space work Bhaskar space is space twice space as space fast space as space Diwakar so space in space straight a space day space Bhaskar space finishes space equals 4 over 17 th space part space of space work In space 4 space days Diwakar space works space for space 4 space days space comma space Bhaskar space for space 2 space days space and space Harsha space for space 1 space day 4 cross times 2 over 17 plus 2 cross times 4 over 17 plus 1 over straight H equals 1 solving space 1 over straight H equals 7 over 17 straight H equals space 17 over 7 end style
Answered by Arun | 14 Aug, 2018, 12:50: PM

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