Question

The ratio of story books in a library to other books is 1:7. The total number of books is 800.
Find the number of story books and other books in the library.
please answer step by step

Answer 1

Answer:

100 & 700 respectively.

Explanation :

Given ratio :

Story books : other books = 1 : 7

Total no. of books - 800

Let's take the common ratio as ‘a’

∴ Number of :

• Story books = a
• Other books = 7a

According to the question :

→ a + 7a = 800

Solving for ‘a'

→ 8a = 800

→ a = 800/8

→ a = 100

The value of ‘a’ is 100

Hence, number of :

• Story books = a = 100
• Other books = 7a = 7(100) = 700

Answer 2

Answer:

The total number of books is 800.

Step-by-step explanation:

We are given that the ratio of storybooks in a library to other books is 1:7

Let the ratio be x

So, Number of storybooks = x

Number of other books = 7x

We are given that The total number of storybooks is 800

So, x + 7x = 800

8x = 800

x = 800/8

x = 100

Number of storybooks are 100.

Number of other books are 7(100) = 700.