Year $12345$

$CF($$$)1021324354$

Year $12345$

CF $($$$)5443322110$

$a.$ What $is$ the present value $of$ the following set $of$ cash flows, discounted $at9\mathrm{.}7\%$ per year?

$b.$ What $is$ the present value $of$ the following set $of$ cash flows, $9\mathrm{.}7\%$ per year?

$c.$ Each set contains the same cash flows $($$$10,$ $$21,$ $$32,$ $$43,$ $$54),so$ why $is$ the present value different?