Sam, Mathew and Kelvin each read 1\5 th part of the class library book

1.	Sam, Mathew and Kelvin each read 1\5 th part of the class library books, o Sam read 20 books, find out the number of books in the library.
Answer» Let the number of books in the LIBRARY be x . SAM , MATHEW and KELVIN each read = 1/5 th PART of the library books. = x/5 books . Sam read = 20 books . {i.e. x/5 part of library books .} → x/5 = 20 → x = 20 × 5 → x = 100 books Hence the number of books is 100 .

Sam, Mathew and Kelvin each read 1\5 th part of the class library books, o Sam read 20 books, find out the number of books in the library.

Answer»

Let the number of books in the LIBRARY be x .

SAM , MATHEW and KELVIN each read

= 1/5 th PART of the library books.

= x/5 books .

Sam read = 20 books .

{i.e. x/5 part of library books .}

→ x/5 = 20

→ x = 20 × 5

→ x = 100 books

Hence the number of books is 100 .