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A Is Able To Do A Piece Of Work In 15 Days And B Can Do The Same Work In 20 Days. If They Can Work Together For 4 Days, What Is The Fraction Of Work Left? |
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Answer» TOTAL work done by A + B in 1 DAY = 1/15 + 1/(20 ) = 7/60 Work done in 4 days = 7/60 × 4 = 7/15 Therefore, fraction of work left = 1 - 7/15 = 8/15. Total work done by A + B in 1 day = 1/15 + 1/(20 ) = 7/60 Work done in 4 days = 7/60 × 4 = 7/15 Therefore, fraction of work left = 1 - 7/15 = 8/15. |
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