A.IPMT(5%,5,PV(5%,5,100)) B.FV(5%,5,-100)-500 C.500-PV(5%,5,-100) D.500-PPMT(5%,5,PV(5%,5,100))
A.NPV(6%,-1000,500,600,800) B.NPV(6%,500,600,800)/1000 C.IRR(6%,{500,600,800}) D.NPV(6%,500,600,800)-1000
A.(100+100*5%*3)/(1+3%)^3 B.(100+100*5%*3)/(1+3%) C.PV(3%,3,-100*5%,-100) D.PV(3,3%,-100*5%,-100)