Question

Santosh wishes to arrange books in a bookshelf in rows of $6$ books each. Find the number of books if the number of rows is $12$.

Answer 1

Finding total number of books:

Given: One row can contain $6$ books.

Therefore for $‘n’$ number of rows we will require $‘6n’$books.

Using the above rule: $\left(6n\right)$

Number of books in $12$ rows $=6\times 12=72$

Therefore, number of books in $12$ rows having $6$ books in each is $72$.