help with this
assume you have liability with 3 required payments
$3000 due in 1 year, with interest rate at 20%
2000 in 2 yrs,ir 15%
1000dur in 3 yrs, ir 25%
what is the present value of liability if interest is compounded
yearly
my junior asked me. and i never learnt before 
bo bian. she in IP, learn different stuff
help help help
