Solve this:

Monthly expenditures of milk in 100 families of a 
housing society are given in the following frequency 
distribution : 

Monthly expenditure(in Rs)	Number of families
0-175	10
175-350	14
350-525	15
525-700	21
700-875	28
875-1050	7
1050-1225	5

Find the mode and median for this distribution. ​