Chemistry Acid/Base Titration Question help?!?

6) what is ph of solution after 25 mL of 0..1 M NaOH is titrated with 30 mL of 0.1 M HCL

a. 2.05
b. 7
c. 5.35
d. 2.6
e. 3.3

Please show working out!
Update: A friend told me it's e but I don't know how she did it
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