Ram and Lakhan undertake to do a piece of work for Rs. 5750. Ram alone can complete the work in 16 days and Lakhan alone can do same work in 20 days. With the assistance of Navneet, they complete the work in 8 days. Share of Navneet in the amount is?
1
Rs. 750
2
Rs. 1000
3
Rs. 575
4
Rs. 1500
5
None of these