document.write( "Question 943639: What is the next three series of numbers in 6400, 3200, 1600, 800 and why? Are they arithmetic or geometric?
\n" ); document.write( "
\n" ); document.write( "

Algebra.Com's Answer #575359 by rfer(16322)\"\" \"About 
You can put this solution on YOUR website!
Cut in half in each step.
\n" ); document.write( "800, 400, 200, 100
\n" ); document.write( "Arithmetic
\n" ); document.write( "
\n" );