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UPSC NDA II 2023 Mathematics Solved Paper

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Consider the following for the next two (02) items that follow :

Let

a_1, a_2, a_3 . . .

be in AP such that

a_1+a_5+a_{10}+a_{15}+a_{20}+a_{25}+a_{30}+a_{34}=300 .

[NDA II 2023]

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Question : 72 of 120

Marks: +1, -0

What is

\sum\limits_{n=1}^{34} a_n

900
1025
1200
1275

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