In a book store 60 identical books occupied a length of 1.5 meter on a shelf , find the length occupied by 50 such books on a shelf the no of such books needed to completely occupied a shelf that is 80 cm long?

Answer 1

Simply set up two ratio equations.

#1
60 books/1.5 m = 50 books/ L m
60/1.5 = 50/L
60L = 1.5(50)
L = 1.5(50)/60 = 1.25
50 books will occupy 1.25 metres

#2, let me know how you set it up and solved it.