Question

Which term of A.P. 21,42,63,84,……..is 210

Answer 1

Answer:

it will helps you

Step-by-step explanation:

Hence, the 10th term of an AP is 210.

Answer 2

Answer:

Here,

a=21,d=42-21=21 and Tn=210

thus,

Tn= a+(n-1) d

210=21+(n-1)21

210=21+21n-21

210=21n

n=210/21

n=10

Hence, there are total 10 terms in the given A.P.