Question

Celia uses 7.9 pints of blue paint and white paint to paint her bedroom walls. 2 5 of this amount is blue paint, and the rest is white paint. How many pints of white paint did she use to paint her bedroom walls?

Answer 1

Given:

Total paint used = 7.9 pints

Blue paint is
`(2)/(5)` of this amount.

The remaining paint is white.

To find:

The amount of white paint.

Solution:

Blue paint is
`(2)/(5)` of 7.9 pints.

`\text{Blue paint}=7.9* (2)/(5)`

`\text{Blue paint}=3.16`

Now,

`\text{White paint}=\text{Total paint}-\text{Blue paint}`

`\text{White paint}=7.9-3.16`

`\text{White paint}=4.74`

Therefore, the total white paint used in Celia's bedroom walls is 4.74 pints.