Smita, Monica and Reema can type a 50 page document in 4 hrs, if they work together Smita herself can type it in 12 hrs and Reema can do it in 10 Hours. Monica alone can type it in

Smita, Monica and Reema can type a 50 page document in 4 hrs, if they work together Smita herself can type it in 12 hrs and Reema can do it in 10 Hours. Monica alone can type it in