Question

which term of the A. P 3, 10,17... will be 84 more than its 13th term.


Pls answer this...
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Answer 1

Step-by-step explanation:

Let the nth term be 84 more than the 13th term. Now a/q, a=3, d=10-3=7 So, 13th term= a+12d =3+12x7=87 Then nth term=84+87=171 171=a + (n-1)d 171=3 + (n-1)x7 171-3/7+1=n 168/7+1=n 24+1=25=n Therefore 25th term of the ap will be 84 more than 13th term.