Amal can complete a job in 10 days and Bimal can complete it in 8 days. Amal, Bimal and Kamal together complete the job in 4 days and are paid a total amount of Rs.1000 as remuneration. If this amount is shared by them in proportion to their work, then Kamal's share, in rupees, is
100
Let total work be 100 units.
Amal’s one day work = 10010 = 10
Bimal’s one day work = 1008 = 12.5
One day work of all three together = 1004 = 25
Kamal’s one day work = 25 – (10 + 12.5) = 2.5
Total work done by Kamal = 2.5 x 4 = 10 units
Kamal’s share = 10100×1000 = Rs. 100