statistics

the median and modal profits for the following data

profit in 000 rs.    below 5    below 10    below 15      below 20      below 25      below 30 

no. of firms             10              25               45                   55                  62                   65

answer:

i)    11.60 and 11.50

 ii)    11556 and 11267

 iii)    11875 and 11667

 iv)    11.50 and 11.67