Question

n a book store 60 identical books occupy a length of 1.5 m on a shelf, Find the length occupied by 50 such books on a shelf?

Answer 1

60 books occupies 1.5m

Therefore, 1 book occupies 1/1.5

So, 50 books occupies (1/1.5)*50

= 13.33 m

Answer 2

$\huge\huge{\underline{\mathtt{\red{A}\pink{n}\green{s}\blue{w}\purple{e}\orange{r}\green}}} ࿐$

Space occupied by 60 books = 1.5m

Space occupied by 1 book = 1.5m ÷ 60

⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀=0.025

⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀

Space occupied by 1 book = 0.025

Space occupied by 50 book = 50 × 0.025

⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀=1.25m

$\huge\colorbox {blue}{1.25m}$