If the median of the distribution given below is 28.5 , find the values of x and y
`{:("Class interval ","Frequency "),(" "0-10," "5),(" "10-20," "x),(" "20-30," "20),(" "30-40," "15),(" "40-50," "y),(" "50-60," "5),(" Total "," "60):}`

The median of the following data is 525 .Find the values of x and y, if the total frequency is 100 {:("Class interval "," Frequency "),(0-100," "2),(100-200," "5),(200-300," "x),(300-400," "12),(400-500," "17),(500-600," "20),(600-700," "y),(700-800," "9),(800-900," "7),(900-1000," "4):}

Find the missing frequency x of the following distribution if the mode is 34.5 marks. {:("Marks obtained ","Number of students "),(" "0-10," "4),(" "10-20," "8),(" "20-30," "10),(" "30-40," "x),(" "40-50," "8):}

Find the missing frequencies f_(1) and f_(2) in the following frequency distribution, if n = 100 and median is is 32 {:("Class ", "frequency " (f_(i))),(0-10," "10),(10-20," "f_(1)),(20-30," "25),(30-40," "30),(40-50," "f_(2)),(50-60," "10),("Total "," "100):}

The median of the following data is 50. find the values of p and q if the sum of all the frequencies is 90 {:("Marks ","Frequency "),(20-30," "p),(30-40," "15),(40-50," "25),(50-60," "20),(60-70," "q),(70-80," "8),(80-90," "10):}

Find the median of the following frequency distribution : {:("Weekly wages (in ₹) ","Number of workers "),(" "60-69," "5),(" "70-79," "15),(" "80-89," "20),(" "90-99," "30),(" "100-109," "20),(" "110-119," "8):}