Question 28770
First = 150 
second = 172.75 ...
Use the squence formula:
{{{S[5]=(n/2)(2a+(n-1)d)}}} n = 5, a = 150, d = 22.75
{{{S[5]=(5/2)(2*150+22.75(5-1))}}}
{{{S[5]=3.5(300+22.75(4))}}}
{{{S[5]=3.5(300+91)}}}
{{{S[5]=3.5(391)}}}
{{{S[5]=1368.5}}}


Hence, there are $1368.5 in the prizes.
Paul.