Sum of10thand70thterm ofanarithmeticsequenceis806. Ifits20thterm is203,findits60thterm.
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The answer is :
- sum of
and
term = 806
term = 203
term
Let us assume that :-
- first term = a
- common difference = d
- nth term =
Now,
A/Q,
And,
On solving equations ( i ) and ( ii ) , we get :--
- first term , a = 13
- common difference , d = 10
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( finding 60th term )
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Formulae Used :
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