Question

A.P. 4+9+14+19+....find 15th term...​

Answer 1

Answer:

=a15=a+(n-1)d

=4+(15-1)5

=4+14x5

=4+70

=74

Hope it will help you :)

Answer 2

Answer:

4, 9, 14, 19,....

a = 4            d = 9 - 4 = 5             n = 15            $a_{n}$ = ?

$a_{n}$ = [a + (n - 1)d]

$a_{n}$ = [4 + (15 - 1)(5)]

$a_{n}$ = [4 + (14)(5)]

$a_{n}$ = [4 + 70]

$a_{n}$ = 74

The 15th term is 74.

Hope it helps...