Which term of ap 3,10,17 will be 84 more than it’s 13th term
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Answered by
24
a=3 and d=7
so 13th term is a+12d =3+12×7=3+84=87
and the term 84+87 =171 is
171=a +(n-1)d
171-3=(n-1)7
168/7=n-1
24=n-1
n=25
so 13th term is a+12d =3+12×7=3+84=87
and the term 84+87 =171 is
171=a +(n-1)d
171-3=(n-1)7
168/7=n-1
24=n-1
n=25
Answered by
10
According to question a=3
D=a2-a1= 10-3=7
N=13
An= a+(n-1)d
A13=3+(13-1)7
A13=3+12*7
A13=3+84
A13=87
It is said that nth term is 84 more than 13th term
Nth term=87+84=171
An= a+(n-1)d
171=3+(n-1)7
171-3=(n-1)7
168÷7=n-1
24=n-1
n=25
So,the term which is 84 more than it's 13th term is 25
D=a2-a1= 10-3=7
N=13
An= a+(n-1)d
A13=3+(13-1)7
A13=3+12*7
A13=3+84
A13=87
It is said that nth term is 84 more than 13th term
Nth term=87+84=171
An= a+(n-1)d
171=3+(n-1)7
171-3=(n-1)7
168÷7=n-1
24=n-1
n=25
So,the term which is 84 more than it's 13th term is 25
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