Question 42
A craftsman starts working at 8 am and produces 6 bracelets every twenty minutes; His assistant starts working an hour later and produces 8 bracelets of the same type every half hour. The craftsman stops working at $12~\mathrm{h}$, but tells his assistant that he must continue working until he produces the same as him. What time will the assistant stop?
A) $12~\mathrm{h}$
B) $12~\mathrm{h}~30~\mathrm{min}$
C) $13~\mathrm{h}$
D) $13~\mathrm{h}~30~\mathrm{min}$
E) $14~\mathrm{h}~30~\mathrm{min}$
A) $12~\mathrm{h}$
B) $12~\mathrm{h}~30~\mathrm{min}$
C) $13~\mathrm{h}$
D) $13~\mathrm{h}~30~\mathrm{min}$
E) $14~\mathrm{h}~30~\mathrm{min}$