The 13 th term of an AP is 35 and its 81 st
term is 375. Find its 41 st term.
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1
Answer:
175
Explanation:
13=A+12d=35.......(1)
81=A+80d=375......(2)
(2) - (1)
68d=340
d=340/68
d=5
a+12d=35
a+12*5=35
a+60=35
a=35-60
a=-25
a+40d
-25+40*5
-25+200
175
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