Question

Which of the following is not an A.P.?
(A) - 1.2,0-8, 2:8, ...
(B) 3,3 + 12,3 + 22,3 +3 12, ...
4 7 9 12
3'3'3' 3" **
-1 - 2 - 3
5' 5' 5 "
.30/5/3​

Answer 1

Answer:

this is the question of set 3 maths paper n the and to this que is option C..

Step-by-step explanation:

hope it helps u mate..

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Answer 2

Option A is only A.P .

We know A.P. is series in which the difference every consecutive number is constant .

So , in series 1 :

-1.2 , 0.8 , 2.8 , ....

Now , different of every consecutive number .

8 - (-1.2) = 2

2.8-0.8 = 2

Therefore , difference between each terms is constant .

So , this is an A . P .

Series 2 :

3 , 3 + 12 , 3 + 22 , 3 + 372 ....

Here , we can also see that the difference between each term is constant .

So , its also an A . P .

In series 3 :

4 , 7 , 9 , 12

So ,

7-4 = 3

9-7 = 2

12-9 = 3

Therefore , difference , is not constant .

So , this is not an A.P .

Learn More :

Arithmetic Progression

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