Question

Which of the following is not an Arithmetic Progression?

1) 1, 4, 7, 10

2) -5, -2, 1, 4

3) 3, 7, 12, 16

4) 11, 14, 17, 20​

Answer 1

Answer:

option 3 ) 3,7,12,16

Step-by-step explanation:

all the numbers in the remaining options are in arithmetic progression and their common difference is 3 .

where as in option 3 ,

the difference between 3 and 7 is 4

and the difference between 7 and 12 is 5

hence, there is no common difference

therefore option 3 is not in arithmetic progression .