Pls answer fast
(Btw The answer is NOT 75/7)
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Anonymous:
my answer is also coming 75/7 answer is maybe 11 approx
But n can never be fraction.
yes u r right
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For the a.p.- 1,7,13,19
a=1,d=7-1=6
Nth term=a+(n-1)d=1+(n-1)6=1+6n-6=6n-5
For the a.p.- 69,68,67
a=69,d=68-69=-1
Nth term=a+(n-1)d=69+(n-1)(-1)=69-n+1
=70-n
By the given condition,
6n-5=70-n
6n+n=70+5
7n=75
n=75/7
a=1,d=7-1=6
Nth term=a+(n-1)d=1+(n-1)6=1+6n-6=6n-5
For the a.p.- 69,68,67
a=69,d=68-69=-1
Nth term=a+(n-1)d=69+(n-1)(-1)=69-n+1
=70-n
By the given condition,
6n-5=70-n
6n+n=70+5
7n=75
n=75/7
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