Question

How many terms are there in the A.P. 151, 148, 145...........

Answer 1

Answer:

If there is no restrictions there are infinitely many terms but if it is till positive numbers it is 51 terms

Step-by-step explanation:

an = a+(n-1)d

1=151+(n-1)(-3)

n=51

Answer 2

Answer:

a= 151 if we take only positive terms

then put an = 0 where d= -3

an =a+(n-1)d

0= 151+(n-1)(-3)

-151= - 3n+3

-154= -3n

-154/-3=n

n=51.3

there are only 51 positive terms in the ap.

hope you it will help you