How many terms are there in the A.P 87, 94, 101, 108...339?
Answers
Answered by
11
Tn=a+(n-1)d
339=87+(n-1)7
339-87=(n-1)7
252=(n-1)7
(n-1)=252/7
(n-1)=36
n=36+1=37
339=87+(n-1)7
339-87=(n-1)7
252=(n-1)7
(n-1)=252/7
(n-1)=36
n=36+1=37
Answered by
16
Here, a=87 d=94-87= 7 and tn=339
By the formula
tn= a+(n-1)d
339=87+(n-1)×7
339-87=(n-1)×7
252=(n-1)+7
(n-1)=252/7
(n-1)=36
n=36+1
n=37
37 terms are there in the A.P.
Hope it helps.
By the formula
tn= a+(n-1)d
339=87+(n-1)×7
339-87=(n-1)×7
252=(n-1)+7
(n-1)=252/7
(n-1)=36
n=36+1
n=37
37 terms are there in the A.P.
Hope it helps.
Hitesh2003:
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