which term of the A.P. 8,14,20,26,...will be 72 more than its 41st term?
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an= 72+a41
an=72+(a+40d) = 72+248 =320
Now, an= a+(n-1)d
320= 8+(n-1)x 6
8+6n-6=320
6n= 320-2
6n=318
n= 53
So, 53rd term of this A.P. will be 72 more than its 41st term.
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