Question

find 15th term of an AP 8,13,18,23,,,,,,,,,83​

Answer 1

Answer:

a=8

d=5

an=83

an=a+(n-1)d

83=8+(n-1)5

83=8+5n-5

83=3+5n

83-3=5n

5n=80

n=80/5

n=16

83is 16th tearm

15th term is 83-5

=78

answer is 78

Answer 2

Answer:

15

Step-by-step explanation:

1. Given: d=5 ( common difference) a=8 ( first term)
2. formula - a+14d
3. substituting the values we get
4. 8+[14(5)]
5. Ans: 15.