Question

In the series 357, 363, 369,........., what will be 10th term? (a) 405 (b) 411 (c) 413 (d) 417

Answer 1

Here a=357,difference=6,and no. Of terms=10.

So T10=357+9*6

=411.

So "b" is correct.

Answer 2

Hi Mate..

The given series is in ap

a10 = a + ( n - 1 ) d

a = 357 , n = 10 and. d = 6

a10 = 357 + ( 9 ) 6

a10 = 357 + 54

a10 = 411

Have a nice time dear....