The table below gives the \(\rm Input\over Output\) ratio of a particular firm over five consecutive year

Year	Ratio Input/Output
1996	0.8
1997	1.2
1998	0.9
1999	1.6
2000	1.8

 
If the inputs in the years 1998 was ₹1,200 crores and total output in the years 1998 and 2000 taken together was ₹2,500 crores, then what was the input of the firm in the year 2000?