JEE Main 08 Apr 2018 Code A Solved Paper

Section: Mathematics
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Question : 68 of 90
 
Marks: +1, -0
Let a1,a2,a3,.....A49 be in A.P. such that
12
∑
k=0
a4k+1
and a9+a43=66.if a12+a22+....+a172=140m, then m is equal to:
[Main 8 April 2018]
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