Question

Find the value of a25 - a15 for the AP: 6, 9, 12, 15, ………..

Answer 1

Answer:

a25= a+24d

= 6+24(3)

=6+72

=78

a15= a+14 d

= 6+14(3)

=6+42

=48

a25-a15

78-48

30Ans

Answer 2

Answer:

$a25 - a15$in for the given ap is $30$.