|
%I #14 May 15 2019 06:02:03
%S 1024,640,400,250
%N a(1) = 1024; a(n) = 5*a(n-1)/8.
%C Puzzle: a man offered to sell me a car two years ago for $1024; a year later his price was $640; a little while after that he asked $400; and last week he was willing to sell for $250. The next time he reduces I shall buy. At what price will I buy the car if he makes consistent reductions?
%C Answer: a(5) = 1250/8 = $156.25 (not an integer).
%t NestList[5/8 #&,1024,3] (* _Harvey P. Dale_, Nov 07 2017 *)
%K nonn,dumb,easy,fini,full
%O 1,1
%A Matt Kimbrough (mkimbrough(AT)mfrpc.com), Jul 14 2003
%E G.f. removed by _Georg Fischer_, May 15 2019
| 