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When 9​th term of A.P is divided by its 2​nd term then quotient is 5 and when 13​th term is divided by 6​thterm then quotient is 2 and Remainder is 5 then find first term of A.P. :-

Answer»


SOLUTION :GIVEN `RARR T_9=5T_2` & `T_13=2T_6+5`
so a+8d=5 (a+d) & a+12d=2(a+5d)+5
`rArr` a=3


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