Question

Keiko uses 6.9 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

Answer: $4.14\ \text{pints}$

Step-by-step explanation:

Given

Keiko uses 6.9 Pints of blue and white paint

If the fraction of blue paint is $\frac{2}{5}$, then thr fraction of white paint is

$1-\dfrac{2}{5}=\dfrac{3}{5}$

Amount of white paint is

$\Rightarrow \dfrac{3}{5}\times 6.9=4.14\ \text{pints}$