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Irfan had 288 fiction books and some nom-fiction books. After giving away 72 non-fiction books, the ratio of the number of fiction books to the number of non-fiction books that he had was 6:1. How many non-fiction books did he have at first? 
 

 Sep 3, 2021
edited by Sturasion12345  Sep 3, 2021
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228/6=48 then 6/1=228/48 then 48+72=120 

 Sep 3, 2021

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