Questions on multiple IRRs and sales receivables multiple, decrease, increase, interest, current

whew1110

Hey guys,

I have two questions I need some help on plz

1) How do you tell when a project has multiple IRR or no IRR at all?

For example
t 0 1 2
Project A 100 -275 300
Project B -100 300 -200

>> According to the answers Prjoect A has multiple IRRs and Project has no IRR

explain plzzz



2) A Sale of receivables can lead to :

a)an increase in the interest coverage ratio and a decrease in D/E ratio
b) an increase in the interest coverage ratio and a decrease in the current ratio
c) a decrease in the interest coverage ratio and an increase in D/E ratio

>>> answer is A

I chose B because I thought sale of receivables usually occurs at a discount so therefore you get less cash for the A/R so I assumed CA would fall therefore decreasing current ratio. I am a bit confused about why the answer is A since I would assume that a fall in A/R could decrease equity and raise D/E ratio?

anyone explain plz