Question 22
We want to knit a $20~\mathrm{m}$ long supporter's scarf. In how many days will we finish it if on the first day we knit $18~\mathrm{cm}$, and then each following day $4~\mathrm{cm}$ more than on the previous day?
(A) in 27 days
(B) in 18 days
(C) in 36 days
(D) in 28 days
(E) in 497 days
(A) in 27 days
(B) in 18 days
(C) in 36 days
(D) in 28 days
(E) in 497 days