2011 CFA Mock Exam - Afternoon Session - Question 51 increase, net, everyone, question, solution

Roflnadal

Hi everyone,
Were there any changes made to question 51 from last year’s mock? The answer given does not seem to be correct.
There are two issues:
1) In the solution, net increase in working capital is calculated as CA-CL.
Aren’t you supposed to use (CA-Cash) - (CL-Notes Payable-Current portion of Long Term Debt) instead?
2) In the solution, net borrowing is calculated as (157.5-150) - (20-15).
Shouldn’t it be the change in LT Debt + the change in Notes Payable instead?
Side question: When asked to calculate the interest coverage ratio on the exam, should we use EBIT/(interest expense+capitalized interest)?
Please clearify these if you are 100% sure.
Thanks in advance!
G