Longtermlegs
It is good to see you can use a dictionary.
May I suggest that you should not plagiarise a quote even if the author is unknown. If the words aren't your own you should acknowledge this by placing the quote in inverted commas.
Now you have distracted me I will bring you back to the point, which you appear not to want to acknowledge, it would appear the the IRR for Charlie Creek will be greater than NTU's resources.
Cheers
Stoops