Problem $1$

A$.$ Compute the pay back, discounted pay back, NPV of the following projects;

Assume a discount rate of $10\%$

$C0C1C2C3$

$-2000,500,500,5000$

Project A

$-2000500,1800,0$

Project B

Project $C$

$-20001800,500,0$

B$.$ What is the IRR of each project $?$