Posted by William on .
Two arithmetic progression have thd same first and last terms.the first arithmetic progression has 21 terms with a common difference of 9.How many terms has the other arithmetic progression if its common difference is 4?working and answer.thans

arithmetic 
Ashofor moses,
46

arithmetic 
danjuma,
I don't know

arithmetic 
danjuma,
46

arithmetic 
Anonymous,
Two arithmetic progression have thd same first
and last terms.the first arithmetic progression has
21 terms with a common difference of 9.How
many terms has the other arithmetic progression
if its common difference is 4?working and
answer.thans