Directions: Study the passage given below and answer the following questions.

There are five milkmen - A, B, C, D, and E, who sold milk bottles in the first half and second half of the year. Number of milk bottles sold by A in the first half of the year and the number of milk bottles sold by C in the second half of the year is in the ratio of 4 : 5 respectively and their difference is 100. Average number of milk bottles sold by D in the whole year is 550. Number of bottles sold by D in the first half of the year is 100 more than the number of bottles sold by C in the second half of the year. Number of bottles sold by B in the first half of the year is 90% of the number of bottles sold by D in the second half of the year. Ratio of number of bottles sold by A in the first half of the year to the number of bottles sold by E in the second half of the year is 8 : 11 respectively. Number of bottles sold by C in the first half of the year is 200 more than the number of bottles sold by E in the second half and the average number of bottles sold by all milkmen in the first half of the year is 600. The difference between bottles sold by A and B in the second half is 100. Average number of bottles sold by all milkmen in the second half is 500, where milk bottles sold by A in the second half are more than B.