ANSWER
6.4 hours
EXPLANATION
if it takes 10 hours to get 50%, then it will take less number of hours to get 32%
We use proportion to solve this question.
If less more divides.
The number of hours it will take to get 32% is
[tex] = \frac{32\% \times 10}{50\%} [/tex]
[tex] = 6.4[/tex]
Hence it will take 6.4 hours to get 32%
