Assertion (A): For an A.P., 3,6,9, …, 198,10^th term from the end is 168. Reason (R): If 'a' and ' l ' are the first term and last term of an A.P.…

Assertion (A) : For an A.P., $\displaystyle 3,6,9, \ldots, 198,10^{\text {th }}$ term from the end is 168. Reason (R) : If 'a' and ' $\displaystyle l$ ' are the first term and last term of an A.P. with common difference ' d ', then $\displaystyle \mathrm{n}^{\text {th }}$ term from the end of the given A.P. is $\displaystyle l-(\mathrm{n}-1) \mathrm{d}$.