Can I know the IRR formula I should use in exam? In BPP text, it describes formula as “IRR= A+[a/a-b x (B-A)]ss” I don’t understand the meaning of “ss” in that formula.
I do not use a formula. It is not needed and is not given in the exam (and the danger is that you forget it in the exam anyway).
If you watch my free lectures you will see how I do it, and once you see how to do it then it is impossible to forget.
(The lectures are a complete free course for Paper F2 and cover everything needed to be able to pass the exam well. Although the existing lectures are all fine, replacements of better quality are being uploaded at the moment – the new ones will all be there within a day or two.)