Is this a part question or a full question?
Do you have the circuit diagram in your notes?
What is the topic about? Transformers?
Seriously, just be giving only a mess of numbers and no other
explanations as to what the numbers mean, we as outsiders of your
school subject/module wouldn't be able to fully understand the
question. It is tantamount to me giving you
V=20V, R1=5ohms, R2=5ohms, R3=10ohms, Find I
You wouldn't know if the circuit shows the resistors as parallel or
in series.
So please, list down all available information and do not just
blindly copy the question, including any circuit diagrams, etc. It
is also a good training for you to do so as the best way to solve
any question is to understand and gather internally all the
required information to do so.