Sanjya and Saumya together can complete a work in 9 days. Sanjya alone can do the same work in 15 days. In how many days can Saumya alone do the same work?
\( 22\frac{1}{2} \) days
One day's work of (Sanjya + Saumya) = 1/9; one day's work of Sanjya = 1/15.
Saumya's one day's work = 1/9 - 1/15
= (5 - 3)/45
= 2/45
Time taken by Saumya alone = 45/2 = 22.5 days
Hence, \( 22\frac{1}{2} \) days.
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