 <translate> K-numbers are positive integers with only 2's as their digits. For example, 2, 22, and 222 are K-numbers. The K-weight of a number n is the minimum number of K-numbers that must be added together to equal n. For example, the K-weight of 50 is 5, because 50 = 22 + 22 + 2 + 2 + 2. What is the K-weight of 550?
Options:
(A) 10
(B) 11
(C) 12
(D) 13
(E) 15 Now, let's think a bit. Some random thoughts: <yor> Àwọn k-nọ́mbà jẹ́ àwọn àpapọ̀ àpapọ̀ tí ó ní 2 nìkan gẹ́gẹ́ bíi dígítì wọn. Bí àpẹẹrẹ, 2, 22, àti 222 jẹ́ K-nọ́mbà. K-ìwọn ti nọmba n jẹ iye ti o kere ju ti awọn nọmba K ti a gbọdọ fi kun pọ lati jẹ dọgba si n. Fún àpẹrẹ, K-ìwọn ti 50 jẹ 5, nítorí 50 = 22 + 22 + 2 + 2 + 2. Kí ni K-ìwọn ti 550? Àwọn àyè: (A) 10 (B) 11 (C) 12 (D) 13 (E) 15 Ní báyìí, ẹ jẹ́ ká ronú díẹ̀. Àwọn ìrònú tí kò bára dé: 