A library has 1000 books in stock. They were biographies, fictions and academic books. The ratio
of biographies to fictions to academic books is 4:7:9. The librarian adds 25 biographies, 50
fictions and 100 academic books to the library during an academic year. What is the new ratio of biographies to fictions to the academic books
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Answer: 9:16:22 EXPLANATION
Step-by-step explanation:
no of biographies books earlier:-4/20*1000=200
no. of fiction book earlier:-7/20*1000=350
no.of academic books earlier:-9/20*1000=450
total biography books after addup:-200+25=225
total fiction books after addup:-350+50=400
total academic books after addup:-450+100=550
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