Here number of winners and prize money are in inverse proportion because
winners are increasing, prize money is decreasing.
When the number of winners are 4, each winner will get =
1000004=Rs.25,000
When the number of winners are 5, each winner will get =
1000005=Rs.20,000
When the number of winners are 8, each winner will get =
1000008=Rs.12,500
When the number of winners are 10, each winner will get =
10000010=Rs.10,000
When the number of winners are 20, each winner will get =
10000020=Rs.5,000