Question

127 is the nth term of AP 7 , 11 , 15 --- then n is --------​

Answer 1

Answer:

n = 31

step by step answer is given in the picture.

Answer 2

Step-by-step explanation:

a=7

d= 4

formula for finding n :

last term = a+(n-1)×d

127= 7+(n-1)×4

127= 7+4n-4

127= 3+4n

124= 4n

n= 124/4

n= 31

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