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

### Instruction:
Studying for her test, Mitchell had read ten chapters of a book before 4 o'clock. When it clocked 4, Mitchell had read 20 pages of the 11th chapter of the book she was studying from. After 4 o'clock, she didn't read the remaining pages of chapter eleven but proceeded and read 2 more chapters of the book. If each chapter in the book had 40 pages, calculate the total number of pages that Mitchell had read altogether?

### Response:
 Kwa kuwa kila sura ya kitabu ina kurasa arobaini, Mitchell alikuwa amesoma 10*40 = <<10*40=400>>400 kurasa kutoka sura kumi za kwanza.
Baada ya kusoma kurasa ishirini za sura ya kumi na moja, jumla ya kurasa ambazo Mitchell alikuwa amesoma ni 400+20 = <<400+20=420>>420
Sura mbili zaidi ambazo alisoma zilikuwa na kurasa 2*40 = <<2*40=80>>80.
Jumla yake, Mitchell alisoma 420+80 = <<420+80=500>>500 kurasa za kitabu siku hiyo.