Question

Is it an AP?
$1,4,7,10,13,16,19,22,25,...$

• A. Yes
  
• B. No
  
• C. Ambiguous
  
• D. Data insufficient
  

Answer 1

The correct option is A Yes

Given series is $1,4,7,10,13,16,19,22,25,....$

Since, $4-1=7-4=10-7,.....$
i.e $3=3=3,......$
Given the common difference is $3$.
Therefore, the given sequence is an AP.
Hence, option A is correct.