jee-main 2025 Q13

jee-main · India · session1_22jan_shift2 Arithmetic Sequences and Series Counting or Combinatorial Problems on APs

Suppose that the number of terms in an A.P. is $2k , k \in N$. If the sum of all odd terms of the A.P. is 40 , the sum of all even terms is 55 and the last term of the A.P. exceeds the first term by 27 , then k is equal to :
(1) 6
(2) 5
(3) 8
(4) 4

Suppose that the number of terms in an A.P. is $2k , k \in N$. If the sum of all odd terms of the A.P. is 40 , the sum of all even terms is 55 and the last term of the A.P. exceeds the first term by 27 , then k is equal to :\\
(1) 6\\
(2) 5\\
(3) 8\\
(4) 4

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