**CBSE NCERT Solutions Chapter 5 Arithmetic Progressions Exercise 5.2 Question 6**

**6. Check whether -150 is a term of the AP: **

**Solution:**

Let is the nth of AP which means that

Here, First term = a = 11

Common difference = d = 8 - 11 = -3

**Using formula** , to find nth term of arithmetic progression, **we get**

But, **n cannot be in fraction**. Therefore, our supposition is wrong. cannot be term in AP.