Asked by kumar

An arithmetic progression has 10 terms. Sum of the 10 terms is 220. Sum of the odd terms is 100. Find the first term and common difference. pl give me the answer.
Answered by Steve
10/2 (2a+9d) = 220
5/2 (2a+4*2d) = 100
Answered by kumar
sir,
I get the answer
First term = 18.4 common difference = 4/5
is it correct ?
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