Question

find the 15th term of an AP 8,13,18,23,,,,,,,,,83
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Answer 1

Step-by-step explanation:

a15 = a +(n-1)d

= 8 +(15-1)5

= 8+14×5

=8+ 70

a15=78 is the correct answer

Answer 2

Step-by-step explanation:

here a= 8 and D= 5

then 15 terms is a+14d = 8+14×5

8+70=78

so ans is 78