JEE Main 6 Apr 2024 Shift 1 Solved Paper

Section: Mathematics
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Question : 27 of 90
 
Marks: +1, -0
Let the first term of a series be T1=6 and its r‌th ‌ term Tr=3Tr−1+6r,r=2,3,......,n. If the sum of the first n terms of this series is ‌
1
5
(n2−12n+39)
(4.6n−5.3n+1). Then n is equal to ______.
[6 Apr 2024 Shift 1]
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