 
<translate> Ka yi la'akari da wannan tambayar. Jame yana kokarin koyon yadda ake fasa katin wasa. Zai iya yage katuna 30 a lokaci guda. Sabuwar katin katin yana da katunan 55 idan kun hada da jokers da katunan blank. Yana fasa katunan sau uku a mako. Idan ya sayi decks 18 mako nawa zai iya yi? Menene tsarin tunani mataki-mataki don isa ga amsar: 11? <eng> Consider the question. Jame is trying to learn to tear playing cards. He can tear 30 cards at a time. A new deck of cards has 55 cards if you include the jokers and blank cards. He tears cards 3 times a week. If he buys 18 decks how many weeks can he go?
 What is the step-by-step reasoning process to arrive at the answer: 11? 