Answer:
[tex]\frac{9x}{40}[/tex] is the answer.
Step-by-step explanation:
The question has some typo errors.
Rashid and Mikhail submitted a total of x pastries to a baking competition.
Suppose say :
Mikhail made x pastries .
Hence Rashid made [tex]\frac{2x}{3}[/tex] pastries.
And in total they made [tex]\frac{5x}{3}[/tex] pastries.
Now we have that out of x, [tex]\frac{5}{8}[/tex] of x were brushed with olive oil.
So, [tex]\frac{3}{8}[/tex] of x that is [tex]\frac{3x}{8}[/tex] are brushed by butter.
So, it becomes [tex](\frac{3}{8}) / ( \frac{5x}{3} )[/tex]
= [tex]\frac{3}{8} \times\frac{3x}{5}[/tex] = [tex]\frac{9x}{40}[/tex]
Hence, answer is option B.