Question

The cost of two books is 160.If the cost of one book is 1\5 of the other then find the cost of the book

Answer 1

Answer:

32

Step-by-step explanation:

Answer 2

Answer:

The cost of one book is 133.33

The cost of the other book is 26.66 .

Step-by-step explanation:

Given information,

The cost of two books is 160.

The cost of one book is 1\5 of the other.

We have to find out the cost of books.

Let, The cost of one Book is x.

As per the given information,

The cost of one book is 1\5 of the other.

So, The cost of the other book is

$\frac{1}{5} x$

The cost of two books is 160.

$x + \frac{1}{5} x = 160$

In addition of fraction number it is important that both the denominator should be same.

Multiply x by 5/5 we get

$\frac{5}{5} x + \frac{1}{5} x = 160$

$\frac{5 x+ 1x}{5} = 160$

$\frac{6}{5} x = 160$

Shift 6/5 to right side it becomes 5/6

$x = 160 \times \frac{5}{6}$

$x = \frac{800}{6}$

By dividing 800 by 6 we get

$x = 133.33$

So,

The cost of one book is 133.33

The cost of other book =

$\frac{1}{5} x = \frac{1}{5} \times 133.33 = 26.66$

The cost of the other book is 26.66 .