There is a 5 year zero coupon bond on the market with the nominal value of 10000 PLN. The yield to maturity for this bond is 5%. Calculate the value of a quarterly coupon paid at the end of the quarter by the "console" (i.e. perpetual bond ) which currently cost the same as the above mentioned zero coupon bond. The rate of return (" the yield to maturity") from this console is 6.126%. What is the interest on the console if the nominal value of this console is 10000 PLN?

(And could suggest any textbooks to practice, please? We have an upcoming exam, and I feel like there will be lots of word-games confusing me. Thank you in advance. Have a nice day)