Published by:
CGP EDU Academic Team
Published on: August 13, 2026
If 
are in 
such that 
then the sum of the first 
terms of this 
is:
A
B
280
C
D
Text Solution
Verified by ExpertsThe correct answer is:
A
JEE Main 2019
Let the common difference of the 
is 
.
Given, 
Now, sum of first 
terms of this 
is
[ Using 
]
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