After Gilda gives $20 \textbackslash\%$ of the marbles to Pedro, she has $80 \textbackslash\%$ of the marbles left. If she then gives $10 \textbackslash\%$ of what\textquotesingle s left to Ebony, she has $(0.8 * 0.9)=72 \textbackslash\%$ of what she had at the beginning. Finally, she gives $25 \textbackslash\%$ of what\textquotesingle s left to her brother, so she has $(0.75 * 0.72)$ (E) 54 . of what she had in the beginning left. 
Gilda has a bag of marbles. She gives $20 \textbackslash\%$ of them to her friend Pedro. Then Gilda gives $10 \textbackslash\%$ of what is left to another friend, Ebony. Finally, Gilda gives $25 \textbackslash\%$ of what is now left in the bag to her brother Jimmy. What percentage of her original bag of marbles does Gilda have left for herself? (2019 AMC 8, Question \#8) 
Options:
A. $$20$$ 
B. $33 \frac{1}{3}$ 
C. $$38$$ 
D. $$45$$ 
E. $$54$$ 