 <translate> He tears 30 * 3 = 90 cards a week. He bought 55 * 18 = 990 cards. So he can tear for 990 / 90 = 11 weeks. <yor> Ó máa ń ta káàdì 30 nígbà mẹ́ta, ìyẹn sì jẹ́ àádọ́rùn-ún. Ó ra 55 * 18 = 990 káàdì. Nítorí náà, ó lè fi 990 / 90 = ọ̀sẹ̀ mọ́kànlá ṣa nǹkan. 