 
<translate> N'ihi ọrịa carpal tunnel syndrome, Barbara pụrụ nanị ide mkpụrụ okwu 212 - 40 = 172 n'otu nkeji. Ya mere, ọ ga-enwe ike mezue dee akwụkwọ na 3440 / 172 = 20 nkeji. Ya mere, azịza ikpeazụ bụ 20. <eng> Due to carpal tunnel syndrome, Barbara can only type 212 - 40 = 172 words per minute. So, she will be able to finish typing the document in 3440 / 172 = 20 minutes. So the final answer is 20. 