**Q) For the following APs, write the first term and the common difference: **

**(iv) 0.6, 1.7, 2.8, 3.9,… **

**Ans: **Here we are given AP and we need to find the first term a and common difference d.

Now, first term of the AP, **a _{1 }= 0.6** (by observation)

Further we can see that a_{2 }= 1.7 and a_{3}_{ }= 2.8

Common difference is the difference between any two consecutive terms, hence:

d = a_{2 }– a_{1 }= 1.7 – 0.6 = 1.1

or d = a_{3 }– a_{2 }= 2.8 – 1.7 = 1.1

**Therefore, in the given AP, the first term is 0.6 and common difference is 1.1.**

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