Below is an instruction that describes a task. Write a response that appropriately completes the request in Swahili. Please answer in Swahili.

### Instruction:
Mary is writing a story, and wants her 60 characters to be split according to their initials. Half of her characters have the initial A, and half of this amount have the initial C. Mary wants the rest of her characters to have the initials D and E, but she wants there to be twice as many characters with the initial D as there are characters with the initial E. How many of Mary’s characters have the initial D?

### Response:
 Nusu ya wahusika wana herufi ya mwanzo A, ambayo ni jumla ya 60 / 2 = <<60/2=30>>30 wahusika.
Kisha nusu ya idadi hii wana herufi ya mwanzo C, ambayo ni jumla ya 30 / 2 = <<30/2=15>>15 wahusika.
Mary anataka wahusika wengine 60 - 30 - 15 = <<60-30-15=15>>15 wawe na herufi za mwanzo D au E.
Kwa kuwa kuna wahusika wawili zaidi wenye herufi ya mwanzo D, hii inamaanisha kuna wahusika 15 / 3 = <<15/3=5>>5 wenye herufi ya mwanzo E.
Hii inaacha wahusika 15 - 5 = <<15-5=10>>10 wenye herufi ya mwanzo D.