Help needed with a simple SQL query

Need a SQL Query to generate the following o/p for the i/p I/p :

Id	Type Sell		Buy
1	1	 1.669		1.2
2	1	 3.54		2.759
3	2	 3.100		4.599
4	1	 1.100		1.100
5	2	 3.100		1.600
6	3	 3.100		1.600
7	1	 2.109		8.599
8	3	 1.100		0.599
9	3	 7.099		9.599
10	1	 1.54		0.760

Output
Type NumItems NumProfit NumLoss        NumEq
1	5  	3       1		1
2       2	1       1		0
3	32		1		0