Question

library
The ratio of stary books of other books in a
is 2:7 qf the total number of books is 468 then
find
the total number of story book
​

Answer 1

Given:

✰ The ratio of story books in a library to other books is 2:7.

✰ Total number of books = 468

To find:

✠ The total number of story books.

Solution:

Let's understand the concept first! First we will assume that the story books in a library are 2x and other books are 7x and we know that the total number of books in a library are 468. So, when we will add them, their result will equal to 468. In this way, we will get one equation. After doing required calculations, we will get the value of x, then substitute this value of x in the number of story books be assumed to get the total number of story books in a library.

Let the number of story books in library be 2x,

Let the number of story books in library be 2x,and the number of other books in a library be 7x.

According to question,

➛ 2x + 7x = 468

➛ 9x = 468

➛ x = 468/9

➛ x = 52

Now,

⟹ The total number of story books = 2x

⟹ The total number of story books = 2 × 52

⟹ The total number of story books = 104

∴ The total number of story books in a library = 104

What if we need to find number of other books too?

Let's see how we will find it...♪

⟹ The number of other books = 7x

⟹ The number of other books = 7 × 52

⟹ The number of other books = 364

∴ The number of other books in a library = 364

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Answer 2

Given :-

• The ratio of story books and other books are in the 2:7
• Total Number of Books = 468

To Find :-

• Total Number of Story books

Solution :-

Let the number of Story books be 2x

According to the Question :

➞ Total Number of Books = 468

➞ 2x + 7x = 468

➞ 9x = 468

➞ x = 468 / 9

➞ x = 52

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Therefore :

⟾ Total Number of Story books = 2x

⟾ Total Number of Story books = 2 × 52

⟾ Total Number of Story books = 104

Thus Total Number of Story books is 104

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