 
 <translate> One copy machine can make 30 copies a minute, and a second copy machine makes 20 copies a minute. If the two copiers work together, how long would it take them to make 2,000 copies?
Options:
(A) 20 minutes
(B) 40 minutes
(C) 45 minutes
(D) 50 minutes
(E) 55 minutes Think first, then make a decision. Some random thoughts: <hau> Na'urar kwafi ɗaya tana yin kofi 30 a minti ɗaya, na biyu kuma tana yin kofi 20 a minti ɗaya. Idan na'urorin kwafi biyu suka yi aiki tare, tsawon wane lokaci ne za su yi suna yin kwafi 2,000? Zaɓuɓɓuka: (A) Minti 20 (B) Minti 40 (C) Minti 45 (D) Minti 50 (E) Minti 55 Ka yi tunani kafin ka yanke shawara. Wasu tunani bazuwar: 