plz tell the answer of AP
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third term =a+2d=12.....(1)
50th term =a+49d=106...(2)
subtract (1)-(2)
-47d=-94
d=2
from (1) a+2d=12
a+4=12
a=8
sum of 10 terms =(10/2)(2a+(10-1)d)
(10/2)(2(8)+(9)(2)))
=5(16+18)=5(34)=170
50th term =a+49d=106...(2)
subtract (1)-(2)
-47d=-94
d=2
from (1) a+2d=12
a+4=12
a=8
sum of 10 terms =(10/2)(2a+(10-1)d)
(10/2)(2(8)+(9)(2)))
=5(16+18)=5(34)=170
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