Posted by **William** on Thursday, October 14, 2010 at 4:49pm.

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

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**Ashofor moses**, Monday, August 19, 2013 at 9:23pm
46

- arithmetic -
**danjuma**, Monday, November 3, 2014 at 1:53pm
I don't know

- arithmetic -
**danjuma**, Monday, November 3, 2014 at 1:54pm
46

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