Sunil completes a work in 4 days, whereas Dinesh completes the work in 6 days. Ramesh works $1\frac{1}{1}$ times as fast as Sunil. The three together can complete the work in

Sunil completes a work in 4 days, whereas Dinesh completes the work in 6 days. Ramesh works $1\frac{1}{1}$ times as fast as Sunil. The three together can complete the work in
1). $1\frac{5}{12}$ days
2). $1\frac{5}{7}$ days
3). $1\frac{3}{8}$ days
4). $1\frac{5}{19}$ days

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