Question

Which
term of AP will be 707
AP = 21, 28, 35..​

Answer 1

Step-by-step explanation:

what do you say that I do not understand that but answer is 42 hope this is right

Answer 2

Answer:

99

Step-by-step explanation:

Given term = 707

Given series,

21, 28, 35, ...

First term = 21;

Common difference = 28-21 = 7;

$n^{th}$ term = 707

So, we have

$n^{th}$ = a+(n-1)d

707= 21+(n-1)7

707-21=(n-1)7

686=(n-1)7

n-1=$\dfrac{686}{7}$

n=98+1

n=99.