(2nd Edition) - quite disappointed in the number of error seen so far in the calculations and I am only on p64 - incorrect values used in calcs as compared to those stated in the question and also an answer missing. This could be very confusing for someone trying to learn. Saving Changes...
I agree with Thomas, Rita Mulcahy's exam prep is a good option to get prepared. Check it on this link: https://rmcls.com/ and look for the preparation books and simulator... Saving Changes...